LON - SYD

$817 Find Cheap Flights from London to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Sydney departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney.
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Everything you should know

Cheapest return fare
$1,447
Typical prices: $1,902-$1,454
China Eastern
Wed 2/9Tue 3/11
LHR - SYD • 1 stop
Cheapest direct flights
$2,119
Typical prices: $2,864-$2,118
Qantas Airways
Sun 10/5Mon 10/8
LHR - SYD • Direct
Top airlines
Cheapest • from $1,447 (return)
Best reviews • 7.6 score
Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between London and Sydney. You’ll need at least 1 connection.
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Top stopover airports
Cheapest • Avg $1,676 (return)
Shortest trip • 21h 40m (one-way)
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Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 14% compared to booking last minute.
Insights
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When to travel
Cheapest • 17% price drop
Most popular
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Sydney (LON-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Sydney

Wed, 2 Sep - Tue, 3 Nov
China Eastern Logo
21:20 - 09:00
LHR
-
SYD
26h 40m
1 stop
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m
1 stop
$1,447China Eastern
Mon, 19 Oct - Wed, 28 Oct
China Eastern Logo
21:20 - 09:00
LHR
-
SYD
49h 40m
2 stops
China Eastern Logo
12:00 - 17:30
SYD
-
LHR
40h 30m
1 stop
$1,452China Eastern
Mon, 19 Oct - Wed, 28 Oct
China Eastern Logo
21:20 - 09:00
LHR
-
SYD
49h 40m
2 stops
China Eastern Logo
12:00 - 17:30
SYD
-
LHR
40h 30m
1 stop
$1,455China Eastern
Sun, 30 Aug - Sun, 4 Oct
Air India Logo
13:15 - 18:25
LHR
-
SYD
44h 10m
1 stop
Air India Logo
21:00 - 19:00
SYD
-
LHR
32h 00m
1 stop
$1,458Air India
Sat, 13 Jun - Tue, 30 Jun
China Southern Logo
21:30 - 19:25
LGW
-
SYD
36h 55m
2 stops
China Southern Logo
21:45 - 14:30
SYD
-
LGW
25h 45m
1 stop
$1,468China Southern
Thu, 17 Sep - Tue, 6 Oct
Air India Logo
14:00 - 18:25
LHR
-
SYD
43h 25m
1 stop
Air India Logo
21:00 - 11:30
SYD
-
LHR
24h 30m
1 stop
$1,480Air India
Thu, 7 May - Sat, 16 May
Emirates Logo
21:05 - 06:05
STN
-
SYD
24h 00m
1 stop
Emirates Logo
20:45 - 12:55
SYD
-
STN
25h 10m
1 stop
$1,487Emirates
Thu, 7 May - Sat, 16 May
Emirates Logo
21:45 - 06:05
LGW
-
SYD
23h 20m
1 stop
Emirates Logo
20:45 - 12:35
SYD
-
LGW
24h 50m
1 stop
$1,496Emirates
Tue, 9 Jun - Tue, 30 Jun
China Southern Logo
21:30 - 19:25
LGW
-
SYD
36h 55m
2 stops
China Southern Logo
10:05 - 14:30
SYD
-
LGW
37h 25m
1 stop
$1,508China Southern
Tue, 22 Sep - Tue, 20 Oct
SWISS Logo
18:05 - 06:10
LCY
-
SYD
27h 05m
2 stops
SWISS Logo
15:05 - 08:40
SYD
-
LCY
27h 35m
2 stops
$2,243SWISS
Booking Insights

KAYAK's insights & trends for London to Sydney flights

Get data-powered insights and trends into flights from London to Sydney to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Sydney?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Sydney departing in September.

What is the cheapest London to Sydney flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Sydney costs $2,449 on the route between London Heathrow Airport (LHR) and Sydney (SYD). It is also the most popular route.

What’s the cheapest day of the week to fly from London to Sydney?

The average price of all round-trip flights from London to Sydney clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sydney on a Monday and more expensive on a Thursday. On your return trip to London, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from London to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Sydney is June, where tickets cost $1,536 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,541 and $2,277 respectively.

How far in advance should I book a flight from London to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Sydney, you should book around 4 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$816
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (38% more expensive on average)
Flight from London Gatwick Airport to Sydney

When to book flights from London to Sydney

Are your dates flexible? Find out the best times to travel from London to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Sydney

  • Are there smoking areas at Sydney Kingsford Smith Airport?

    The legislation around smoking in New South Wales states that it is an offence to smoke within four metres of a public entrance or exit. There are designated smoking areas outside of the terminals, which are clearly signed; however, there are none for those transiting through T1 International Terminal, so you will not have an option to smoke until you have exited the arrivals area.

  • How do I go about getting assistance in Heathrow Airport?

    There are multiple assistance host areas in each terminal with staff that can assist with general advice, directions or assistance for mobility-impaired travellers or those otherwise needing assistance. There are accessible facilities throughout the airport, including wheelchair access toilets in every terminal, SignLive service available for hearing impaired travellers, the Aira app for visually impaired guests and plenty of free-to-use mobility equipment, available by asking any of the staff at any area of the airport.

  • What does London Heathrow have in store for children?

    In Terminal 2–5 at Heathrow Airport, families find Stay & Play areas in the Departures Area. In the International Terminal (Terminal 2), the family zone is located in the main departure lounge close to Gate 16.

  • Are there any smoking areas at Heathrow Airport?

    While smoking is not permitted throughout the terminal buildings, there are a few outdoor smoking areas at Heathrow Airport; they are indicated with a sign. The smoking ban beyond these designated areas also applies to e-cigarettes. Once passengers have passed through the security checkpoints, there is no possibility to smoke anymore.

  • Are there any showers at Sydney Airport?

    If you fancy freshening up after the long flight from London to Sydney, you can check in at the shower facilities available at Sydney Airport. They are situated close to the check-in counters A and K in the general check-in area. Towels and toiletries are not provided at these facilities.

  • Where are baby changing facilities at the London airports?

    Baby changing areas can be found at each terminal at Heathrow Airport, both in the public and post-security area. They are designated with a family sign and usually close to the public toilets. At Gatwick Airport, you can find them in the check-in area, in the transfer, and post-security area.

  • Does London Heathrow feature onsite hotels?

    London Heathrow features a variety of onsite airport hotels where you can spend the night before your flight from London to Sydney takes off. If you only need a bed for a few hours, opt for the YOTEL that offers Japanese-style capsules. The Sofitel at Terminal 5 provides more luxury, and at Terminal 3 and 4, you find the Aerotel and Hilton respectively.

  • What is the cheapest flight from London to Sydney?

    In the last 3 days, the lowest price for a flight from London to Sydney was $816 for a one-way ticket and $1,447 for a return.

  • Which airports will I be using when flying from London to Sydney?

    On your way to Sydney, you’ll fly out from one of these London airports: London City, London Gatwick, London Heathrow, London Luton, or London Stansted. You’ll be landing at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from London to Sydney?

    The Airbus A380-800 is the aircraft model that flies most regularly on the London to Sydney flight route.

  • Which airline alliances offer flights from London to Sydney?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between London and Sydney, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from London to Sydney, China Airlines or Singapore Airlines?

    The two airlines most popular with KAYAK users for flights from London to Sydney are China Airlines and Singapore Airlines. With an average price for the route of $1,606 and an overall rating of 8.3, China Airlines is the most popular choice. Singapore Airlines is also a great choice for the route, with an average price of $2,126 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from London to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Sydney

  • If you’re heading into Sydney City from the airport, you can make the journey by train usually in under 15min. The train station is clearly signed and is connected to the north side of the terminal at the arrivals level. You can purchase an Opal Card from kiosks at the train station or from various convenience stores in Sydney Airport (SYD), or you can tap with your contactless Visa, Mastercard or AMEX. The trip should cost around A$ 18, but can be slightly higher if you purchase a single fare.
  • Those looking for a coffee and a meal after a long flight will find many options available at Sydney Kingsford Smith Airport. There is a wide selection of cafes, restaurants offering cuisines from around the world, bars and classic takeaway options.
  • If you want to pick up a few particular items at London Heathrow Airport (LHR) before you depart London City, you can book a personal shopping experience through Heathrow Boutique with an accredited stylist to find new favourite pieces to take home.
  • If you are looking for a direct connection from London to Sydney Kingsford Smith Airport (SYD), British Airways offers direct flights from London Heathrow (LHR) to Sydney for a more convenient flight experience.
  • Regardless of whether you are flying from Heathrow (LHR), London Gatwick (LGW), or Stansted (STN), you can reach each airport conveniently from London centre. The Gatwick Express departs from London Victoria, whereas the Stansted Express leaves from Liverpool Street. Heathrow is accessible with the Piccadilly underground line.
  • There are various open-access lounges situated at Gatwick Airport. In both the North and South Terminal there is a No. 1 Lounge and a Clubrooms, for example. Their entry passes start at around £ 35–40 (A$ 67–77).
  • Families departing from London Gatwick Airport can benefit from the various kids’ zones available in the Departures Area. Here, they can play games and watch child-friendly programs, so parents can rest a little before boarding.
  • With the in-flight picnic program at Heathrow Airport, you can assemble your own delicious meal and take it on the plane. Various restaurants prepare their meals on the go in designated doggy bags for your convenience.
  • Taxi ranks await in front of the terminal buildings at Sydney Airport, with clear signs directing the way. A taxi ride to Sydney CBD will take about 20min and cost A$ 45–55.

Reviews of the top 5 airlines flying from London to Sydney

 
See real verified KAYAK customer reviews for airlines flying from London to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1304 reviews
7.6Comfort
7.9Boarding
7.3Food
7.8Entertainment
8.1Crew
Airline reviews

More meal choice. There was only pork, beef and shrimp. I could not eat any of it and they had no alternatives

8.0 ExcellentAnonymous, Apr 2026
MNL - HKG
Read more Cathay Pacific reviews

More meal choice. There was only pork, beef and shrimp. I could not eat any of it and they had no alternatives

Crew were not engaging. Only engaged if requested. Food taste was mediocre

The flight from Hong Kong to Hyderabad didn’t have any power points to charge my mobile. Given we are no longer allowed to use power banks, giving customers the ability to charge even on short flights is critical part of the overall experience.

I liked the service. The touch screen needs improvement as well as movie choices.

The experience was very good. A little disappointed for the delays and the screen. The touch screen was annoying for being so irresponsive. Not a lot of good movie choices for me. The service is great. Food could have more choices though.

Flights home are always happy, except this time I was traveling to be with my ailing father.

My only suggestion is a way to not be woken up for food. … like maybe something you can place on you if you’d prefer to miss food than be woken up

when i ask for help all the crew members had a look like why are you calling me? very terse and rude.

Selected ovo lacto meal because I’m ok with milk products but not any meat. It was terrible. We had the same selection back in October when we had traveled and it was pretty good at that time. It was gross this time.

The bed was alright in business class. Food variety and quality were not up to the mark compared to the business class airfare.

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

Very good overall. However, your choices of free movies was limited and there was no music Channel???

I couldn't hear all of the announcements. It was nice when they put them on the screen.

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

Good service. But on flight to Kochi no entertainment except in app. And no working outlets to charge phone.

On this flight...fine. The one from India to Abu Dahbi, awful.

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

Kayak and Aran grant issuing business class tickets without lounge access and sometimes 1 or 2 connections in economy class. It’s very disappointing to find out that after buying the ticket. Never buy tickets on kayak and Aran grant again

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

While boarding at PVG, there was a ticket checking at the gate, then there was another ticket checking at the bottom of the escalator, which created quite a dangerous congestion. Not sure which idiot made this absolutely unnecessary arrangement.

While boarding at PVG, there was a ticket checking by the gate, then there was another ticket checking right at the bottom of the escalator, which created quite a dangerous congestion. Don't understand why the duplication?

I was traveling alone with an infant, so the crew was incredibly helpful. Both the international and subsequent domestic flights were impeccable.

Plane was good. But food was bad and air host was so rude. I will never fly with China Eastern again

The flight was delayed by 2 hours, although to their credit they delayed my connecting flight so people could reach it. Also their site is a nightmare to navigate on a phone. Everything else was good.

The ticket was last minute buy so no concerns about the pricing this time, but the crew in general could have been more accommodating, helpful.

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers. A BIG ISSUE FOR NON-CHINESE PASSENGERS IS THE ABILITY TO CHECK IN ONLINE, by making so difficult or almost impossible there is no chance to get a seat assignment ahead of time then go to the airport and get what is left. THIS IS NOT a SKY TEAM modality.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers.

Everything you need to know for your flight from London to Sydney

Other airlines flying from London to Sydney

Flights from the other most popular airlines that fly from London to Sydney according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.