LON - SYD

$867 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 2/11. 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

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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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

Tue, 14 Oct - Tue, 28 Oct
China Southern Logo
21:00 - 20:25LHR-SYD
37h 25m2 stops
China Southern Logo
11:25 - 14:00SYD-LHR
37h 35m2 stops
$1,452China Southern
Find Deal
Sat, 7 Mar - Wed, 25 Mar
China Southern Logo
21:30 - 20:20LHR-SYD
35h 50m2 stops
China Southern Logo
11:25 - 17:55SYD-LHR
41h 30m2 stops
$1,454China Southern
Find Deal
Tue, 23 Sep - Mon, 27 Oct
China Eastern Logo
11:35 - 07:40LGW-SYD
35h 05m2 stops
China Eastern Logo
12:00 - 06:30SYD-LGW
29h 30m1 stop
$1,457China Eastern
Find Deal
Mon, 2 Mar - Sun, 22 Mar
China Eastern Logo
21:00 - 13:35LHR-SYD
29h 35m1 stop
China Eastern Logo
12:00 - 17:30SYD-LHR
40h 30m1 stop
$1,457China Eastern
Find Deal
Tue, 21 Oct - Tue, 28 Oct
 Logo
11:35 - 14:15LGW-SYD
40h 40m2 stops
 Logo
21:30 - 06:30SYD-LGW
44h 00m1 stop
$1,470
Find Deal
Tue, 28 Oct - Tue, 4 Nov
 Logo
10:30 - 15:05LGW-SYD
41h 35m2 stops
 Logo
21:30 - 14:00SYD-LGW
27h 30m1 stop
$1,472
Find Deal
Tue, 24 Feb - Sun, 8 Mar
Emirates Logo
20:15 - 07:00STN-SYD
23h 45m1 stop
Emirates Logo
06:00 - 18:00SYD-STN
23h 00m1 stop
$1,520Emirates
Find Deal
Tue, 10 Mar - Sun, 29 Mar
Emirates Logo
14:05 - 22:30STN-SYD
21h 25m1 stop
Emirates Logo
06:00 - 11:55SYD-STN
40h 55m1 stop
$1,522Emirates
Find Deal
Sun, 9 Nov - Tue, 18 Nov
SWISS Logo
19:20 - 07:15LCY-SYD
24h 55m2 stops
SWISS Logo
15:15 - 08:45SYD-LCY
28h 30m2 stops
$1,785SWISS
Find Deal
Mon, 2 Mar - Mon, 16 Mar
SWISS Logo
13:30 - 07:15LCY-SYD
30h 45m2 stops
SWISS Logo
12:15 - 08:35SYD-LCY
31h 20m2 stops
$1,794SWISS
Find Deal

Everything you should know

Top airlines
China Southern
Cheapest • from $1,452 (return)
Singapore Airlines
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR-SYD
Cheapest
LHR-SYD
Most popular
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 18% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$1,452
Overall average: $1,917
China Southern
Tue 14/10Tue 28/10
LHR - SYD • 2 stops
Cheapest direct flights
$2,010
Typical prices: $1,990-2328
Qantas Airways
Sat 7/3Sat 21/3
LHR - SYD • Direct
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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!
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?

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 $2,216 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 Thursday and more expensive on a Saturday. On your return trip to London, you should consider flying back on a Monday, and avoid Saturdays 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 May, where tickets cost $1,604 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,634 and $2,497 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 5 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$867
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (35% more expensive on average)
Flight from London Heathrow 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 $575 for a one-way ticket and $963 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, and Star Alliance 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, Singapore Airlines or Emirates?

    The two airlines most popular with KAYAK users for flights from London to Sydney are Singapore Airlines and Emirates. With an average price for the route of $2,106 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Emirates is also a great choice for the route, with an average price of $2,091 and an overall rating of 8.1.

  • 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

  • Looking for a cheap flight? 25% of our users found flights on this route for $1,860 or less one-way and $2,257 or less round-trip.
  • If you’re heading into Sydney City from the airport, you can make the journey by train usually in under 15min. The train station is clearly signed and is connected to the north side of the terminal at the arrivals level. You can purchase an Opal Card from kiosks at the train station or from various convenience stores in Sydney Airport (SYD), or you can tap with your contactless Visa, Mastercard or AMEX. The trip should cost around A$ 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.
8.1
Singapore AirlinesOverall score based on 1365 reviews
7.7Food
8.2Boarding
8.0Entertainment
8.6Crew
8.0Comfort
Airline reviews

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

4.0 OkayRobert, Aug 2025SIN - SYD
Read more Singapore Airlines reviews

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Headwind delayed our flight which wasn’t the airlines fault

Food from Surabaya was below average but from Singapore is much better

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

It was very good experience on board to Sydney with SQ.

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

The staff on Singapore Airlines was incredible. I would like to commend LS Reuben from my SQ37 flight on November 19th, 2024, from LAX to Singapore, for his outstanding service and care. During the flight, one of my earbuds—brand new and valued at nearly $300—fell out and became lodged in the box controlling the in-flight entertainment system. I was understandably upset, but Reuben went above and beyond to assist me in this tough situation. Reuben demonstrated exceptional determination and empathy. Instead of suggesting we wait for an engineer, he immediately took action, spending almost 30 minutes searching for the earbud. He even got down on the floor to ensure it was recovered. His genuine concern and persistence made all the difference and turned a frustrating situation into one where I felt truly valued as a passenger. Reuben is a shining example of the remarkable service that sets Singapore Airlines apart. His dedication and willingness to go the extra mile left a lasting impression, and I want to sincerely thank him for his kindness and professionalism.

The food options and quality could use some more excitement and variety.

I very much liked and appreciated the service on board. The seating arrangement in Business feels uncomfortable. It's not made for tall people, in any case.

There was a flight attendant named Angela who took care of me because I injured my foot badly right before the flight. Because of the service she provided I will always fly Cathay.

I am Vegetarian also has Gluten free food. However they gave me chicken and fish which is gluten free, but i am a vegetrain and i requested crew Hindu meal vegetarian, they said they will come back. .but they never showed up even i asked 2nd time. They could have compensate. I also request airline industry to have another option Gluten Free for Vegetarin people as well. Because Vegetarin people will have gluen issue...

The economy seats are incredibly tight. A large percent of the traveling public will not fit. I will not fly Cathay again because of this. You are literally squeezing passengers for profit. The CEO should fly some economy flights.

it was a great experience as far as business class.. but I have had better meals and wine on other airlines.. that said.. the price was a great value for what I got in return.. crew made the difference.

Paid a premium a have a shorter transit time in Hong Kong, but Cathay pacific rebooked me and ended up waiting for 10 hrs in Hong Hong airport.

As before, my only problem was not being able to download my boarding passes prior to arrival at the airport. Everything else was perfect.

They ran out of food and were offering random food to passengers.

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

Flight was delayed at the last minute for six hours. Instead of delaying it to a normal hour, they moved it to 10 pm to essentially make it a redeye. There was no compensation or benefit offered for this inconvenience. Once on the plane, Inpaid for WiFi twice with both times it not working because of a “weak WiFi signal”, according to the flight attendants. They also chose the farther possible gates in both airports from the entrance/exit, even though they were one of the few active flights left so late in the evening. Overall it was pretty horrible.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

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.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

It was worst flight ever of 26h. Poor service and seating. Flight from Abu Dhabi to Islamabad service and seating was worst ever. No tv extra.

i was not allowed to use lounge, although i had business class ticket, and nobody told me my ticket was not eligible to use lounge

It was OK as the seat which we paid for doesn’t have any window. We paid $120 for 3 seats but it’s for nothing. Crew could not help. None of the ports worked so all our phones went dry

The food could be better. Toilets were smelly all along

Horrible. After paying for seats, I was cramped, my daughters legs kept hitting the seat in front, I had no overhead bin space and no help from stewards on board, the food was served cold, when asked for snacks was told to wait and never received any, the flight was cold with no temperature controls. Entertainment was outdated. I booked this through partnership with American Airlines but will avoid in the future.

Horrible. After paying for my seats, I was cramped, had no overhead bin space, freezing as the flight had no temperature controls, the food was awful and served cold, when asked for snacks was told to wait and then never received any. I booked this flight as a partner through American Airlines but will avoid in the future.

Took a long time for boarding. The flight was comfortable.

Extremely bad food, they never gave our bags in time, the online check-in did not let us check in because we had Indian OCI not sure why we were given the option to check in then, because we couldn’t check in online we had to go in person and we were not able to change our seats and sit with our family

The staff were wonderful but the seats weren't very comfortable for a bigger guy like me.

Likes: on time departure, new plane Didn’t like:very poor quality food, very limited entertainment.no amenity kit etc.

good flight. food is only so so. I actually did not eat the snack. it does not look too good on the passenger next to me.

Food no variations only beef of chicken no veggie meals

Super surprised with the entire experience. Business class is incredible. Flight attendants around the world could learn customer service from these people. Simply fabulous experience all the way around.

Pillow and blanket are dirty. My son got multiple bites during the flight

Flight was on time. My group paid for seat’s so that us four can be seated next to each other. We all got separated. We all got middle seats, which made it more difficult to be able to get up and stretch or use the restroom. We tried talking to the employees at China Eastern and they were of no help. We will not be taking this flight or recommend this route to others in the future. Also I will be contacting customer service on how I can get our money back for paying for assigned seats.

China eastern was fantastic. I had read so many bad reviews that had made me nervous. However, I found that the flight attendant’s, and customer service check in etc. etc. was excellent. I had no problems. I would fly with them again!

Excellent! I had read some negative reviews but I found out that it was not all was not true! The staff was courteous and helpful. The flight take off and landing was nice & easy. The food was good! I asked for a second and I got it easily and without an attitude! All was wonderful!

Excellent experience however older aeroplanes used by China Eastern Airlines.

The crew were excellent, service amazing, blankets and pillow good, cabin temperature perfect, the flight on time, food was unusual selection however plentiful, price for tickets unbeatable through Kayak. Older aeroplanes used by China Eastern was the only down side.

Delay in off-boarding due to customs at SFO... pilot announcement should have come earlier so passengers don't clog aisles.

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.

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