LHR - SYD

$765 Find Cheap Flights from London Heathrow Airport 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 Heathrow to Sydney departing on 11/5. 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
$1,415
Overall average: $1,680
China Eastern
Mon 9/3Sun 29/3
LHR - SYD • 1 stop
Cheapest direct flights
$1,792
Typical prices: $1,842-$2,282
British Airways
Tue 3/3Tue 17/3
LHR - SYD • Direct
Top airlines
China Eastern
Cheapest • from $1,415 (return)
Singapore Airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Sydney (LHR-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 Heathrow to Sydney

Mon, 9 Mar - Sun, 29 Mar
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
12:00 - 18:40
SYD
-
LHR
40h 40m
1 stop
$1,415China Eastern
Wed, 3 Jun - Sun, 14 Jun
China Eastern Logo
21:20 - 12:35
LHR
-
SYD
30h 15m
1 stop
China Eastern Logo
20:30 - 18:40
SYD
-
LHR
31h 10m
1 stop
$1,416China Eastern
Wed, 25 Feb - Wed, 4 Mar
China Southern Logo
21:30 - 20:20
LHR
-
SYD
59h 50m
2 stops
China Southern Logo
11:25 - 18:35
SYD
-
LHR
42h 10m
1 stop
$1,418China Southern
Sun, 1 Mar - Tue, 17 Mar
Multiple Airlines Logo
20:35 - 18:50
LHR
-
SYD
35h 15m
1 stop
Multiple Airlines Logo
21:00 - 16:20
SYD
-
LHR
30h 20m
1 stop
$1,419Multiple Airlines
Thu, 14 May - Tue, 23 Jun
China Eastern Logo
21:20 - 08:00
LHR
-
SYD
49h 40m
2 stops
China Eastern Logo
11:00 - 18:40
SYD
-
LHR
40h 40m
1 stop
$1,421China Eastern
Thu, 12 Mar - Mon, 23 Mar
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m
1 stop
$1,422China Eastern
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
17:40 - 15:30
LHR
-
SYD
34h 50m
1 stop
Multiple Airlines Logo
12:00 - 17:30
SYD
-
LHR
40h 30m
1 stop
$1,423Multiple Airlines
Wed, 4 Mar - Fri, 13 Mar
China Southern Logo
17:15 - 09:25
LHR
-
SYD
29h 10m
2 stops
China Southern Logo
22:00 - 18:35
SYD
-
LHR
31h 35m
1 stop
$1,425China Southern
Sun, 19 Apr - Sat, 16 May
China Eastern Logo
21:20 - 09:00
LHR
-
SYD
26h 40m
1 stop
China Eastern Logo
11:20 - 18:40
SYD
-
LHR
64h 20m
2 stops
$1,426China Eastern
Wed, 8 Apr - Wed, 22 Apr
China Southern Logo
22:10 - 12:35
LHR
-
SYD
29h 25m
1 stop
China Southern Logo
21:45 - 19:00
SYD
-
LHR
30h 15m
1 stop
$1,428China Southern
Booking Insights

KAYAK's insights & trends for Heathrow to Sydney flights

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

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

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

When flying from London Heathrow Airport to Sydney, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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 $1,508 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,469 and $2,440 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 15% 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$765
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (30% more expensive on average)
Flight from London Heathrow Airport to Sydney

When to book flights from Heathrow to Sydney

Are your dates flexible? Find out the best times to travel from Heathrow 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 London Heathrow Airport 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 $765 for a one-way ticket and $1,415 for a return.

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

    London Heathrow Airport airport is called London Heathrow and the only airport in Sydney is Sydney Kingsford Smith.

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

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

  • Which airline alliances offer flights from London Heathrow Airport to Sydney?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between London Heathrow Airport 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 $1,632 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 $2,037 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 Heathrow Airport to Sydney.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport 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 Heathrow Airport with another airline.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $2,015 or less one-way and $1,750 or less round-trip.
  • Travellers who are prepared to pay a little more can enjoy a direct flight connection from London Heathrow International Airport (LHR) to Sydney Kingsford Smith International Airport (SYD). British Airways and Qantas Airways are among the airlines that offer direct flights between the two big cities.
  • London Heathrow has a lot in store for families waiting for their flight from London to Sydney. There are various stay & play areas dotted around the terminals, and a range of eateries located at Heathrow have free meal deals for children. Children also travel for free on the Heathrow Express, operating between the city centre and the airport.
  • If you have some pound notes left and want to change them into Australian dollars, you can do so conveniently and for a good rate at the currency exchange offices in each terminal at Heathrow Airport. You have a choice between Travelex, Western Union, and Xpress Money Services, which all offer competitive conversions.
  • In the public food court at Sydney Airport, you find a range of eateries that are open until 22:00, so you can enjoy quick snack upon arrival. The restaurants that are open late include Hungry Jack’s if you fancy burgers, Mad Mex, and Beqaa that serves Lebanese food.
  • If you need to go to London Heathrow and don’t want to worry about parking, simply hop on the Piccadilly underground line, which serves the Heathrow terminals. It is cheaper than the Heathrow Express, costing approximately £ 6 (A$ 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 flying from Heathrow 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 Heathrow 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 1440 reviews
8.0Comfort
7.8Food
8.0Entertainment
8.6Crew
8.3Boarding
Airline reviews

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

8.0 ExcellentRavin, Jan 2026
SIN - CMB
Read more Singapore Airlines reviews

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

toilets could be cleaned more frequently, everything else was pretty good.

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 service airline. The cabin crew is attentive and friendly. Inflight entertainment system is good

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.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

The food wasn’t good at all. I skipped meals .

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!

Was so disappointing. Business class with no TV, uncomfortable seats. Had much higher expectations.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I missed my flight ,staff unhelpful, they sat and watched me wait ,gangway door closed, English was a problem no announcement I was on time now I missed my month vacation ,lost 1400 bucks no refund I'm sick to my stomach

Seat space was tight and uncomfortable. There was hardly any cushioning giving me a terrible tail bone ache. Getting and out was extremely cramped. We paid for seat choices and felt totally ripped off. Food was mediocre. By the time the servers served 2 or 3 rows they ran out of this or that option as we saw on the inbound trip also. This is infuriating. Entertainment choices were extremely limited for such a long haul. The screen froze on occasion and did not switch off when the on off button was pressed. When it did it came back on its own in 5 seconds. The airlines has gone downhill since last year.

I paid 44 $ for seat upgrade (22D) and my seat was stack in high position for all the 6 hours of flight. I don't recommend the upgrade. I am looking to get my upgrade payment back

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.

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.

Overall experience is good but if the food menu can change to authentic Malaysia food will be good. I.e. Nasi Lemak, Char Kueh Tiew and etc

Surprised that the safety briefing was only conducted in Malay language and no English despite there are foreigners on board. MH should take safety more seriously.

Flights were delayed, Food was good but only 1 meal instead of 2.

Food was good but only 1 meal and 1 pie, instead of 2 meals. Both legs were late.

We are row 11, when the crew came to us, only one meal choice was available.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

Comfortable seats in economy, managed a few hours sleep in an o night flight but the food was terrible. Surprising as Malaysia airlines has been good in the past. Service was mediocre this time too.

Vast improvement needed in customer service. I couldn’t get the drink of my choice during both meals (i.e. sparking water and Diet Coke). I had used plastic cups falling onto me from the tray. No eye contact when they thank you on the way out signalling an insincere thank you.

Jia yung was the flight attendant that made this a miserable flight.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

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

Too many changes in departure time (4-5 times before the actual departure time was determined) with no reasons provided.

Mumbai to New York was not comfortable as I was given different sits in hat what I paid for

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

Other airlines flying from Heathrow to Sydney

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