LHR - SYD

$753 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 20/4. 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
$1,359
Typical prices: $1,375-$1,827
China Southern
Sun 3/5Sun 24/5
LHR - SYD • 2 stops
Cheapest direct flights
$2,066
Typical prices: $2,314-$3,317
Qantas Airways
Tue 5/5Wed 15/7
LHR - SYD • Direct
Top airlines
Cheapest • from $1,359 (return)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and Sydney. You’ll need at least 1 connection.
Insights
Insights
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Insights
Top stopover airports
Cheapest • Avg $2,353 (return)
Shortest trip • 21h 46m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Sun, 3 May - Sun, 24 May
China Southern Logo
19:15 - 12:25
LHR
-
SYD
32h 10m
2 stops
China Southern Logo
14:10 - 18:05
SYD
-
LHR
36h 55m
2 stops
$1,359China Southern
Thu, 11 Jun - Sat, 20 Jun
Air China Logo
22:40 - 14:50
LHR
-
SYD
31h 10m
1 stop
Air China Logo
19:40 - 17:40
SYD
-
LHR
31h 00m
1 stop
$1,360Air China
Mon, 11 May - Sat, 13 Jun
China Southern Logo
22:10 - 08:25
LHR
-
SYD
25h 15m
1 stop
China Southern Logo
14:10 - 19:20
SYD
-
LHR
38h 10m
1 stop
$1,362China Southern
Mon, 27 Apr - Fri, 22 May
China Southern Logo
21:00 - 12:25
LHR
-
SYD
30h 25m
2 stops
China Southern Logo
14:10 - 18:05
SYD
-
LHR
36h 55m
2 stops
$1,363China Southern
Tue, 12 May - Thu, 18 Jun
China Southern Logo
22:10 - 12:25
LHR
-
SYD
29h 15m
1 stop
China Southern Logo
21:45 - 18:05
SYD
-
LHR
29h 20m
2 stops
$1,365China Southern
Wed, 29 Apr - Tue, 19 May
China Southern Logo
22:10 - 19:25
LHR
-
SYD
36h 15m
1 stop
China Southern Logo
14:10 - 18:05
SYD
-
LHR
36h 55m
2 stops
$1,366China Southern
Mon, 13 Apr - Tue, 28 Apr
China Southern Logo
21:00 - 12:25
LHR
-
SYD
30h 25m
2 stops
China Southern Logo
10:05 - 16:15
SYD
-
LHR
39h 10m
2 stops
$1,368China Southern
Mon, 27 Apr - Wed, 13 May
China Southern Logo
22:10 - 19:25
LHR
-
SYD
36h 15m
1 stop
China Southern Logo
14:10 - 19:20
SYD
-
LHR
38h 10m
1 stop
$1,369China Southern
Thu, 30 Apr - Mon, 18 May
China Southern Logo
22:10 - 08:25
LHR
-
SYD
25h 15m
1 stop
China Southern Logo
14:10 - 18:05
SYD
-
LHR
36h 55m
2 stops
$1,370China Southern
Wed, 29 Apr - Sun, 24 May
China Southern Logo
22:10 - 19:25
LHR
-
SYD
36h 15m
1 stop
China Southern Logo
14:10 - 18:05
SYD
-
LHR
36h 55m
2 stops
$1,372China 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.

How much is a return flight from London Heathrow Airport 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 Heathrow Airport to Sydney departing in May.

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 Tuesdays 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 $1,572 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,515 and $2,489 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 5 weeks before departure, which saves you about 19% 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$753
Best time to beat the crowds (13% 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 $753 for a one-way ticket and $1,359 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, 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 $2,072 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Emirates is also a great choice for the route, with an average price of $2,006 and an overall rating of 8.1.

  • 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

  • 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 1475 reviews
8.0Entertainment
8.6Crew
8.0Comfort
8.3Boarding
7.8Food
Airline reviews

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

4.0 OkayOscar, Mar 2026
LAX - NRT
Read more Singapore Airlines reviews

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

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.

It was great. It was my first time with Cathay Pacific and I really recommend.

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

Poor links to cathay meaning it's not possible to check in online or reserve seats. Incorrect information provided by cathay regarding check in and transfer at HKG. Delay in flight required is to be escorted / run to make the connecting flight and no opportunity to use the business lounge. Luggage did not make the connection so we arrived in Manchester with no luggage

Very bad Instead 22 hour it take me more that 35 hour to arrive from Los Angeles to Phuket and they changed my flight in Hong Kong to Shanghai china and in order to get my bag I was forced to vet china visa entrry

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

Few vegetarian food options. Incorporating one per meal service would be best and captures a wider audience than just vegetarians (individuals with religious meat restrictions can also eat vegetarian).

Cramped, hot and the plane was grubby. Also the plane was an hour late and it took an hour to get my luggage once I got to LAX.

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

Food , drink experience were great with Cathay. Crew service was excellent. Clean toilet and full snack bars always, pilot took of 26minutes later when boarding at Hong Kong with extra US customs check at gate 9 for US flight, but he managed to arrive only 2 minutes later from flight tracker. Smooth flight .

Great service from crews and delicious dishes, snacks and drinks. Egg tarts and local dimsum are delicious.

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

Qantas is always subpar beyond comfy chairs for a domestic flight

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

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

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

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

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

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.

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

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

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

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!

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.