Cheap flights from Sydney to London Heathrow Airport from $399

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
10 Mar — 17 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in October or February, booked 51 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Sydney to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Heathrow
Explore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 February 2026.

Sun 8/321:15
SYD
-
LHR
2 stops29h 45m
Turkish Airlines
Sun 15/306:35
LHR
-
SYD
2 stops25h 45m
Turkish Airlines
Deal found 5/2$1,176
Fri 1/514:15
SYD
-
LHR
1 stop37h 45m
China Southern
Mon 1/622:10
LHR
-
SYD
1 stop36h 30m
China Southern
Deal found 7/2$1,177
Tue 5/521:45
SYD
-
LHR
1 stop30h 15m
China Southern
Wed 3/622:10
LHR
-
SYD
1 stop29h 25m
China Southern
Deal found 6/2$1,178
Mon 4/521:45
SYD
-
LHR
1 stop30h 15m
China Southern
Sun 7/622:10
LHR
-
SYD
1 stop29h 25m
China Southern
Deal found 7/2$1,180
Sun 15/321:15
SYD
-
LHR
2 stops27h 15m
Turkish Airlines
Sun 12/422:35
LHR
-
SYD
2 stops35h 35m
Turkish Airlines
Deal found 6/2$1,181
Thu 26/309:55
SYD
-
LHR
1 stop44h 05m
Multiple Airlines
Thu 4/622:10
LHR
-
SYD
1 stop29h 25m
Multiple Airlines
Deal found 7/2$1,183
Sun 8/321:15
SYD
-
LHR
2 stops28h 40m
Turkish Airlines
Fri 20/317:45
LHR
-
SYD
2 stops38h 35m
Turkish Airlines
Deal found 6/2$1,184
Thu 26/309:55
SYD
-
LHR
1 stop44h 05m
Multiple Airlines
Thu 9/422:10
LHR
-
SYD
1 stop36h 30m
Multiple Airlines
Deal found 8/2$1,185
Sun 22/322:00
SYD
-
LHR
1 stop30h 00m
China Southern
Sun 19/422:10
LHR
-
SYD
1 stop36h 30m
China Southern
Deal found 7/2$1,190

Find flight deals from Sydney to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 February 2026.

Round-trip from

$1,176

One-way from

$399

Popular in

December

Cheapest in

October

Average price

$1,539

Good round-trip deal

$1,848 or less

Good one-way deal

$1,402 or less
Turkish Airlines
  • Turkish Airlines
  • 8/3-15/3
  • 4 total stops
  • 55h 30m total
  • Sydney to London
Beijing Capital Airlines
  • Beijing Capital Airlines
  • 12/3
  • 1 total stop
  • 44h 05m total
  • Sydney to London
Highest demand for flights based on searches. 7% potential increase in price ($209 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($73 potential savings vs. average return price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from Sydney Kingsford Smith to London Heathrow.
Price to beat on a one-way flight from Sydney Kingsford Smith to London Heathrow.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 8 February 2026.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.

Fly from

Sydney

Fly to

Heathrow

Route

Depart

Return

Price

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 16/3

21:15-14:55

2 stops28h 40m

London Heathrow

Fri 24/4

16:45-19:10

2 stops41h 25m

$1,217

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 5/3

13:30-17:30

3 stops39h 00m

London Heathrow

Tue 17/3

21:00-07:20

3 stops47h 20m

$1,352

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/3

13:30-17:30

3 stops39h 00m

London Heathrow

Sun 15/3

21:00-13:35

1 stop29h 35m

$1,406

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 27/5

20:30-18:40

1 stop31h 10m

London Heathrow

Wed 10/6

21:20-12:35

1 stop30h 15m

$1,412

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 21/5

22:10-16:30

1 stop27h 20m

London Heathrow

Wed 3/6

21:10-10:45

1 stop28h 35m

$1,425

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 26/4

22:10-16:30

1 stop27h 20m

London Heathrow

Mon 15/6

21:10-10:45

1 stop28h 35m

$1,429

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 6/5

10:05-18:40

3 stops41h 35m

London Heathrow

Sun 10/5

21:20-09:00

1 stop26h 40m

$1,429

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 15/3

10:00-17:30

3 stops42h 30m

London Heathrow

Sun 12/4

21:20-08:00

3 stops49h 40m

$1,436

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 10/6

20:30-18:40

1 stop31h 10m

London Heathrow

Tue 23/6

21:20-09:00

1 stop26h 40m

$1,509

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 24/3

12:00-17:30

1 stop40h 30m

London Heathrow

Wed 8/4

21:20-12:35

1 stop30h 15m

$1,510

Flights are sorted by cheapest return flights first.

Deals found on 5/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from Sydney to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to London Heathrow Airport

How far ahead should I book a flight from Sydney to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Sydney to Heathrow. Price data was last updated on 30 January 2026.

To ensure you get the cheapest price possible for a flight from Sydney to London Heathrow Airport, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Sydney to London Heathrow Airport?

Currently, May is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,136). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,743). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to LHR?

Find hourly flight availability from Sydney to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 February 2026.

When flying from Sydney to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Sydney to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 8 February 2026.
Read through reviews of airlines operating flights from Sydney to London Heathrow Airport, such as Singapore Airlines, Cathay Pacific, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Sydney to London Heathrow?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to London Heathrow. You should not have trouble finding flights to London Heathrow from Kingsford Smith; the airport handles an average of 3 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 23 airlines have flights from the Sydney airport to London Heathrow. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • How long is the flight from Sydney to London Heathrow Airport?

    Turkish Airlines and China Eastern can get you from Sydney to London Heathrow Airport in just under 28h 40m. Your travel time can differ by up to 10h 20m. Airlines will cover a distance of 17008 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sydney to London Heathrow Airport round-trip?

    Currently priced at $1,039, China Southern will fly you from Sydney to London Heathrow Airport and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from $1,055 and $1,171, respectively. China Southern is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Sydney to London Heathrow Airport one-way?

    The cheapet airlines for a one-way flight from Sydney to London Heathrow Airport are Hainan Airlines ($375), Etihad Airways ($475), and Tianjin Airlines ($494).

  • What are the cheapest flights from Sydney to London Heathrow Airport?

    While on average a flight from Sydney to London Heathrow Airport is generally $7,397, our data shows the cheapest flight currently is $877. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,103 for that flight.

  • Where are the most common stopover locations when flying from Sydney to London Heathrow Airport?

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Universal Studios Singapore, and Merlion are currently the most popular points of interest in Singapore at the moment. Sentosa, Universal Studios Singapore, and Merlion can be visited by traveling about 21.6 km, 21.6 km, and 16.9 km respectively from Singapore Changi. Travellers can rent a car at Singapore Changi for an average daily rate of $113 to make sightseeing during their stopover a little easier.

  • What are points of interest worth seeing during a stopover in Kuala Lumpur?

    Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia are currently the most popular points of interest in Kuala Lumpur. Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia can be visited by travelling about 46.6 km, 44.9 km, and 44.8 km respectively from Kuala Lumpur Intl. Travellers in need of a car in Kuala Lumpur can hire one for about $44 per day.

  • Where are the least popular stopover locations for Sydney to London Heathrow Airport flights?

  • Can I find deals for flights from Sydney to Heathrow that include hotel bookings?

    Yes. In addition to deals on Sydney to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Heathrow.

  • Can I find deals for business class flights from Sydney to Heathrow?

    Yes. Cheapflights offers flight deals from Sydney to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, May is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,136). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,743). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Kingston upon Thames
Salisbury
Horsham
Southall
Chatham
Dover
Braintree
Gatwick
Chertsey

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Fly from Sydney to Heathrow on these airlines

Choose from the following airlines for your flight from Sydney to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 8 February 2026.

Top 10 airlines flying from Sydney to Heathrow

Discover the top 10 airlines that operate flights from Sydney to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$1,039Average$1,541FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest$1,055Average$1,500FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,171Average$1,396FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Turkish AirlinesCheapest$1,204Average$1,528FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Malaysia AirlinesCheapest$1,272Average$1,573FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Air IndiaCheapest$1,326Average$1,680FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China AirlinesCheapest$1,338Average$1,622FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
SWISSCheapest$1,414Average$2,215FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Japan AirlinesCheapest$1,428Average$1,872FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$1,461Average$1,904FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Sydney today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sydney to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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