LHR - SYD

$595 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 6/14. 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 round-trip
$1,079
Typical prices: $1,431-$1,052
Air China
Thu 9/10Thu 10/15
LHR - SYD • 1 stop
Cheapest non-stop
$3,071
Typical prices: $3,132-$1,863
Qantas Airways
Sat 7/4Sat 7/18
LHR - SYD • Non-stop
Top airlines
Cheapest • from $1,079 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between London and Sydney. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $916 (round-trip)
Shortest trip • 22h 47m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Sydney (LHR-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from London to Sydney

Thu, Sep 10 - Thu, Oct 15
Air China Logo
8:25 pm - 2:50 pm
LHR
-
SYD
33h 25m
1 stop
Air China Logo
8:40 pm - 8:25 pm
SYD
-
LHR
33h 45m
1 stop
$1,079Air China
Tue, May 12 - Sun, May 17
China Eastern Logo
9:20 pm - 8:00 am
LHR
-
SYD
49h 40m
2 stops
China Eastern Logo
10:05 am - 6:40 pm
SYD
-
LHR
41h 35m
3 stops
$1,093China Eastern
Wed, Jun 17 - Thu, Jul 16
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
$1,107China Eastern
Sun, May 17 - Thu, Jun 11
Multiple Airlines Logo
9:30 am - 4:50 pm
LHR
-
SYD
22h 20m
1 stop
Multiple Airlines Logo
9:00 pm - 7:30 pm
SYD
-
LHR
31h 30m
2 stops
$1,108Multiple Airlines
Wed, Jun 17 - Mon, Jul 20
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
China Eastern Logo
11:00 am - 6:40 pm
SYD
-
LHR
40h 40m
1 stop
$1,113China Eastern
Wed, Jun 17 - Tue, Jul 7
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
$1,114China Eastern
Wed, Jun 17 - Tue, Jul 7
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
$1,115China Eastern
Mon, Sep 21 - Mon, Oct 12
Air India Logo
1:15 pm - 6:25 pm
LHR
-
SYD
44h 10m
1 stop
Air India Logo
9:00 pm - 11:30 am
SYD
-
LHR
24h 30m
1 stop
$1,119Air India
Tue, Sep 1 - Wed, Oct 14
Air India Logo
9:45 pm - 6:25 pm
LHR
-
SYD
35h 40m
1 stop
Air India Logo
9:00 pm - 7:00 pm
SYD
-
LHR
32h 00m
1 stop
$1,120Air India
Wed, Jun 17 - Sat, Jul 18
China Eastern Logo
9:20 pm - 8:00 am
LHR
-
SYD
49h 40m
2 stops
China Eastern Logo
10:00 am - 6:40 pm
SYD
-
LHR
65h 40m
2 stops
$1,122China Eastern
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 round-trip flight from London Heathrow Airport to Sydney?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport 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 Heathrow Airport to Sydney is May, where tickets cost $1,120 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,784 and $1,753 respectively.

How far in advance should I book a flight from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport 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$595
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from London 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 London to Sydney flights

  • Are there direct flights between London Heathrow Airport and Sydney Airport?

    Unfortunately, there are no direct flights between London and Sydney; however, there are multiple efficient options you can take that require a transfer during the journey. Depending on which airline you fly with, you will make a transfer usually at their airport hub. For instance, a flight with Emirates would require one change at Dubai International Airport before you continue your onwards journey.

  • How can I save time at Heathrow airport?

    Heathrow Airport is a busy airport and it can take some time to get through the security and baggage checks. One way to speed this up is to pre-book with Fast Track Security. Available at all terminals at Heathrow, it costs about £12.50 and needs to be booked 24h in advance. It can save you considerable time, especially if you are in a rush.

  • Can I stay in an LHR airport hotel the night before my flight?

    Should you not want to be in a rush the day of your flight, one great option is to stay at an airport hotel. Heathrow has many hotels catering for various terminals. So, if for example you’re leaving from Terminal 2 with Singapore Airlines to Sydney, you could opt for Aerotel London Heathrow, which is only a few minutes away from the terminal building.

  • What are the best ways to get from Sydney Airport to the centre of the city?

    It’s easy to get from Sydney Airport to Sydney city centre. Upon arrival you have two train options, you can jump on the T8 South Line train, which takes approximately 13min and leaves every 10min or so. This can be found at the northern end of the arrivals hall or hop on the AirLink and be in Sydney in about 15min. The train also connects the terminals at Sydney Airport, so you can board wherever you land. Tickets cost around A$ 20 and you can use an Opal top-up card, purchasable at the station, or your credit card to pay the fare. Alternatively, you can get either the number 400 or 420 bus, which leave regularly from outside the terminals. Of course, you could get a taxi, but these can be quite expensive.

  • What kind of lounges can I enjoy at Heathrow Airport?

    There are various open-access lounges at Heathrow Airport where you can wait for your flight in style. The House Lounge is located in Terminal 4, where you also find the Plaza Premium Lounge. In Terminal 3, you find the No1 Lounges.

  • Can I smoke at Heathrow Airport?

    Heathrow Airport is a smoke-free airport, but there are some designated smoking areas outside the terminal buildings. The smoke ban includes e-cigarettes. Passengers should note that smoking beyond the security point is not possible anywhere.

  • Is there a hotel at Heathrow Airport?

    If you have booked an early flight and want to remain close to the airport, you can stay in a range of airport hotels close to the terminal buildings. Hotels include the Holiday Inn Heathrow Airport, DoubleTree by Hilton, and the Mercure London Heathrow, to name some.

  • Are there internationally compatible charging stations at Heathrow Airport?

    Throughout Heathrow Airport, you find charging stations for phones and laptops. They are compatible with UK and European plug outlets, but also have a USB port for international devices.

  • What is the cheapest flight from London Heathrow Airport to Sydney?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Sydney was $595 for a one-way ticket and $1,079 for a round-trip.

  • Do I need a passport to fly between London and Sydney?

    A passport is required to fly from London to Sydney.

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

    When flying out of London you will be using London Heathrow. You will be landing at Sydney, also known as 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?

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

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

    The two airlines most popular with KAYAK users for flights from London to Sydney are Singapore Airlines and Cathay Pacific. With an average price for the route of $1,677 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,190 and an overall rating of 7.6.

  • 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 round-trip ticket. You could then fly to Sydney with an airline and back to London with another airline. Booking your flights between London and SYD can sometimes prove cheaper using this method.

  • 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 Heathrow Airport to Sydney

  • Travellers who are prepared to pay a little more can enjoy a direct flight connection from London Heathrow International Airport (LHR) to Sydney Kingsford Smith International Airport (SYD). British Airways and Qantas Airways are among the airlines that offer direct flights between the two big cities.
  • London Heathrow has a lot in store for families waiting for their flight from London to Sydney. There are various stay & play areas dotted around the terminals, and a range of eateries located at Heathrow have free meal deals for children. Children also travel for free on the Heathrow Express, operating between the city centre and the airport.
  • If you have some pound notes left and want to change them into Australian dollars, you can do so conveniently and for a good rate at the currency exchange offices in each terminal at Heathrow Airport. You have a choice between Travelex, Western Union, and Xpress Money Services, which all offer competitive conversions.
  • In the public food court at Sydney Airport, you find a range of eateries that are open until 22:00, so you can enjoy quick snack upon arrival. The restaurants that are open late include Hungry Jack’s if you fancy burgers, Mad Mex, and Beqaa that serves Lebanese food.
  • If you need to go to London Heathrow and don’t want to worry about parking, simply hop on the Piccadilly underground line, which serves the Heathrow terminals. It is cheaper than the Heathrow Express, costing approximately £ 6 (A$ 12) for a single one-way ticket and taking about 45–60min from Central London, as opposed to the £ 22 (A$ 42) and 15min journey for the Heathrow Express.
  • Do you not fancy plane meals for your flight from London to Sydney? At Heathrow Airport, you can have your in-flight picnic assembled to enjoy a scrumptious treat during your flight. A variety of restaurants participate and you can put together your preferred foods.
  • It’s easy to travel to London Heathrow Airport (LHR) for your departure. From the city centre, you can get the Piccadilly Line or Heathrow Express. Or if travelling by car, you can exit the M25 via junction 14 or 15.
  • If you live in the south of the UK, you may find it easier to depart from London Gatwick Airport (LGW), which also has flights to Sydney Airport. These tend to be a similar flight duration and cost, so it could be more convenient for you.
  • With Sydney Airport (SYD) being only about a 30min drive from Campbelltown and around a 1h drive from Wollongong, it is a great airport if you want to continue your journey to other destinations in New South Wales, Australia.
  • Before your flight, why not relax at one of the luxury lounges that Heathrow Airport offers. No matter which airline you are flying with, you can choose from a range of lounges, such as Aspire lounge, which offers shower facilities, complimentary drinks and Wi-Fi for around £25 per person.
  • If you need wheelchair assistance at London Heathrow Airport, then call the Assistance Host Area in the terminal you are leaving from 48h prior to your flight. Once you have arrived at the airport, you will locate the host areas in the check-in zones of each terminal, where you’ll receive assistance all the way through to boarding.

Reviews of the top 5 airlines serving 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.
8.2
Singapore AirlinesOverall score based on 1499 reviews
8.3Boarding
7.8Food
8.0Entertainment
8.6Crew
8.0Comfort
Airline reviews

Kayak really screwed up by offloading the booking to a third party. They were completely inept and caused a bunch of toil. I will never use Kayak again.

2.0 MediocreJeff, Apr 2026
MDC - SIN
Read more Singapore Airlines reviews

Kayak really screwed up by offloading the booking to a third party. They were completely inept and caused a bunch of toil. I will never use Kayak again.

It was fine. Nothing special but nothing went wrong so all good.

I loved the full Taylor Swift selection but felt that the other selections were limited, didn’t span the popular music eras nor a wide enough range of music genres. BUT the seat and bed were GREAT (it was wide, long enough, had great storage, firm enough to uphold body postural comfort). Outstanding crew and really great food - gourmet innovative dim sum breakfast so different from the boring standard fare offered by many other business class products.

They ran out of the second choice of food was stuck with fish

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

No frills airline with minimal leg room and no entertainment

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

Best airline I think. No problems with anything. Crew were great, no problems with the airline food and entertainment and a smooth flight.

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

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.

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

Flight got canceled due to Middle East conflict. Just fly hasn’t refunded me the money

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

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

Good one but just notice that you have to ask several time to get water or coffee .

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

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

There was not any issues with the Etihad Airways. Staff was excellent and I love the variety of movies and games that they provided.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

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.

2 parts to the journey. First leg covered in a newer plane with decent staff + POOR FOOD QUALITY but the second half didn’t leave a positive impression at all as the plane itself was an older built and the crew didn’t serve properly. Language is an issue with China Eastern flights as always, but unmotivated crew just makes it even bad.

tray table was inclined by 30 degress so could not use it

Very poor experience. The entertainment screen wasn't working, charging USB was not working. There was a water leak on my head from air conditioning. The tray table was cracked. seats were old and dirty.

Flight was cancelled by air India. There was no explanation provided why the flight was cancelled. Found out that the flight was cancelled because the Iran air space was closed. Meanwhile, all other flights passing through that region were operating without issues. When asked to refund money for the tickets, being told that “ As checked, we wish to share that Flight AI 116 on 15 January 2026 from New York to Mumbai was cancelled due to Iran airspace closure, which were beyond the airline’s control. While such events can disrupt travel plans, we appreciate your understanding and patience. Our team remains committed to ensuring the safety and comfort of all passengers and takes all necessary measures to minimize any issues. However, we must inform you that compensation is not applicable under these extraordinary circumstances, in accordance with the relevant regulations.” Completed unacceptable and unprofessional behavior!

The flight was on time, the entire experience was very smooth. The Flight crew were incredibly professional and nice. Made us feel very comfortable

Bad weather in Amritsar cancelled the flight while we were at the gate in Delhi but the ground crew took good care of us and exceeded our expectations. Once on the plane, we enjoyed the best experience we’ve had on any flight in years. Their customer support was also impressively quick to answer and immediately helpful.

Very bad experience luggage never made to destination no help form airlines staff aircraft was old crappy forts staff service bad airlines staff

Aircraft condition poor, no inflight entertainment, broken seats, seats worn, split armrests, flat seat cushions and seat would recline. Aircraft needs refitting completely!

We had extra baggage which is an ordinary event. The check-in counter experience for them to calculate the additional amount owed and collect payment was terrible - very manual, multiple counters to resolve, took more than 30 minutes

Worst staff from Vienna. one of the server was very rude and annoying as she thinks she owns the airlines

very run down aircraft. seat tilted. the mobile / magazine holder was broken. The entertainment screen was not working. The crew was good, polite and helpful

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

Information on your arrival and departure airports