LON - SYD

$900 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 30/12. 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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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

Sun, 23 Nov - Tue, 2 Dec
China Eastern Logo
10:30 - 10:00LGW-SYD
36h 30m1 stop
China Eastern Logo
12:00 - 14:00SYD-LGW
37h 00m1 stop
$1,431China Eastern
Find Deal
Mon, 2 Mar - Wed, 11 Mar
China Southern Logo
21:30 - 07:30LHR-SYD
47h 00m2 stops
China Southern Logo
11:25 - 18:35SYD-LHR
42h 10m1 stop
$1,431China Southern
Find Deal
Mon, 29 Dec - Wed, 28 Jan
China Southern Logo
21:30 - 13:35LHR-SYD
29h 05m2 stops
China Southern Logo
11:25 - 18:35SYD-LHR
42h 10m1 stop
$1,433China Southern
Find Deal
Wed, 4 Feb - Thu, 19 Feb
China Eastern Logo
10:30 - 06:30LGW-SYD
33h 00m1 stop
China Eastern Logo
21:30 - 14:00SYD-LGW
27h 30m1 stop
$1,434China Eastern
Find Deal
Fri, 5 Dec - Wed, 24 Dec
Air China Logo
11:35 - 15:30LGW-SYD
40h 55m1 stop
Air China Logo
20:40 - 05:35SYD-LGW
43h 55m1 stop
$1,448Air China
Find Deal
Sun, 30 Nov - Mon, 15 Dec
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 15:55SYD-LHR
30h 15m1 stop
$1,457Air China
Find Deal
Tue, 21 Apr - Sun, 24 May
SWISS Logo
19:20 - 06:10LCY-SYD
25h 50m2 stops
SWISS Logo
11:00 - 07:35SYD-LCY
29h 35m2 stops
$1,823SWISS
Find Deal
Mon, 9 Mar - Mon, 10 Aug
SWISS Logo
19:10 - 09:35LCY-SYD
27h 25m2 stops
SWISS Logo
11:00 - 08:50SYD-LCY
30h 50m2 stops
$1,963SWISS
Find Deal
Tue, 11 Nov - Tue, 3 Feb
KLM Logo
17:05 - 08:25LCY-SYD
28h 20m2 stops
KLM Logo
15:55 - 09:30SYD-LCY
28h 35m2 stops
$2,062KLM
Find Deal
Wed, 19 Nov - Mon, 24 Nov
KLM Logo
17:05 - 06:35LCY-SYD
26h 30m2 stops
KLM Logo
15:55 - 09:30SYD-LCY
28h 35m2 stops
$2,065KLM
Find Deal

Everything you should know

Top airlines
China Eastern
Cheapest • from $1,431 (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 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 19% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$1,431
Overall average: $1,993
China Eastern
Sun 23/11Tue 2/12
LGW - SYD • 1 stop
Cheapest direct flights
$1,862
Typical prices: $1,994-$2,392
Qantas Airways
Wed 18/2Wed 11/3
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?

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 November.

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 $2,574 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 Tuesday and more expensive on a Saturday. 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 May, where tickets cost $1,608 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,694 and $2,529 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 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$900
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (36% 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 $900 for a one-way ticket and $1,431 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, 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 $2,107 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 $2,086 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 $1,262 or less one-way.
  • If you’re heading into Sydney City from the airport, you can make the journey by train usually in under 15min. The train station is clearly signed and is connected to the north side of the terminal at the arrivals level. You can purchase an Opal Card from kiosks at the train station or from various convenience stores in Sydney Airport (SYD), or you can tap with your contactless Visa, Mastercard or AMEX. The trip should cost around A$ 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 1388 reviews
7.7Food
8.6Crew
8.0Comfort
8.3Boarding
8.0Entertainment
Airline reviews

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

8.0 ExcellentAnonymous, Sept 2025SIN - BLR
Read more Singapore Airlines reviews

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

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.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

In Colombo when I-drop my baggage Sri Lanka air line crew not polite way talk very rude

The WiFi was not compatible on both my phones (Vivo Y30 5g and Samsung Galaxy A32) with up-to-date android software.

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

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

The check-in has been the very best so far I didn't get to use my priority access which made me feel like a paid a higher price with no benefit for that I loved the food Very tasty and hot The staff friendliness, empathy could be better as it was not linear amongst the whole crew Otherwise, no complaints. I'd still fly again via Etihad Great prices despite the long 6h of waiting time

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 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.

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.

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

Small plane with only two lavatories at the back. You must have a good plan to use it before or after the meal, if you make a bad decision, you will end up with standing in front of the toilet for a while till the food carts empty. The good thing is even there’s a slightly delayed, the plane is still arriving on time which is superb!!

The only personel that smiled at all were the flights attendants. Desk agents, lounge people none of them had a smile or even a hello. They were like dealing with dead fish. Again flight attendants were good. All other personnel looked like they didn’t want to be there or help.

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.

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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