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Cheap flights from London Heathrow Airport to Sydney from $907

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
5 12月 — 12 12月1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Sydney Kingsford Smith are usually found in March or May, booked 90 days in advance, depart on a Tuesday or Thursday and return on a Monday

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Cheapest flights from Heathrow to Sydney
Explore the most affordable flight options available from Heathrow to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 11月 2025.

週六 15/1122:00LHR - SYD
1 stop35h 20mChina Southern
週四 4/1211:25SYD - LHR
1 stop42h 10mChina Southern
Deal found 3/11$1,431
週六 15/1122:00LHR - SYD
1 stop35h 20mChina Southern
週一 1/1211:25SYD - LHR
2 stops61h 35mChina Southern
Deal found 3/11$1,433
週四 4/1221:30LHR - SYD
2 stops35h 50mChina Southern
週日 18/115:15SYD - LHR
1 stop38h 20mChina Southern
Deal found 4/11$1,434
週一 1/1221:30LHR - SYD
2 stops47h 00mChina Southern
週一 15/1222:00SYD - LHR
2 stops51h 00mChina Southern
Deal found 3/11$1,436
週日 16/1121:15LHR - SYD
1 stop30h 40mHainan Airlines
週六 13/1221:00SYD - LHR
1 stop31h 55mHainan Airlines
Deal found 4/11$1,437
週一 24/1121:00LHR - SYD
2 stops54h 55mHainan Airlines
週日 28/1221:00SYD - LHR
2 stops31h 55mHainan Airlines
Deal found 3/11$1,439
週四 13/1121:30LHR - SYD
2 stops35h 50mChina Southern
週二 9/1211:25SYD - LHR
2 stops42h 10mChina Southern
Deal found 4/11$1,440
週四 27/1120:25LHR - SYD
1 stop32h 05mAir China
週四 4/1220:40SYD - LHR
1 stop32h 10mAir China
Deal found 4/11$1,442
週一 1/1220:25LHR - SYD
1 stop32h 05mAir China
週一 15/1220:40SYD - LHR
1 stop30h 15mAir China
Deal found 3/11$1,443
週日 9/1121:15LHR - SYD
1 stop30h 40mMultiple Airlines
週一 2/219:10SYD - LHR
1 stop31h 10mMultiple Airlines
Deal found 4/11$1,451
週二 30/1221:30LHR - SYD
2 stops29h 05mChina Southern
週一 12/109:20SYD - LHR
2 stops44h 15mChina Southern
Deal found 4/11$1,453
週二 25/1121:00LHR - SYD
3 stops51h 00mChina Eastern
週二 2/1212:20SYD - LHR
2 stops64h 10mChina Eastern
Deal found 2/11$1,454

Cheap flight deals from Heathrow to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Sydney (SYD). 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 5 11月 2025.

Round-trip from

$1,431

One-way from

$907

Popular in

December

Cheapest in

March

Average price

$1,838

Good round-trip deal

$2,079 or less

Good one-way deal

$1,613 or less
China Southern
  • China Southern
  • 15/11-4/12
  • 2 total stops
  • 77h 30m total
  • London to Sydney
Search Deals
11/11
  • 11/11
  • 3 total stops
  • 34h 55m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($365 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($92 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from London Heathrow to Sydney Kingsford Smith.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Sydney 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 5 11月 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.

Fly from

Heathrow

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週六 17/1

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

週日 1/2

22:10-16:55

1 stop29h 45m

$1,889

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週六 17/1

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

週五 30/1

22:10-16:55

1 stop29h 45m

$1,889

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週一 12/1

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

週二 27/1

22:10-16:55

1 stop29h 45m

$1,889

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週日 1/2

13:45-06:20

1 stop29h 35m

Sydney Kingsford Smith

週一 2/3

12:10-07:25

1 stop30h 15m

$1,948

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週六 31/1

12:00-09:05

2 stops34h 05m

Sydney Kingsford Smith

週五 27/2

14:00-07:25

1 stop28h 25m

$1,948

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週一 26/1

12:50-09:05

2 stops33h 15m

Sydney Kingsford Smith

週日 1/2

14:00-07:25

1 stop28h 25m

$1,948

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週三 21/1

10:05-06:20

1 stop33h 15m

Sydney Kingsford Smith

週六 31/1

11:50-06:20

2 stops29h 30m

$1,951

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週五 30/1

06:35-19:20

2 stops25h 45m

Sydney Kingsford Smith

週三 25/2

21:15-14:10

2 stops27h 55m

$2,071

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週三 19/11

22:35-19:20

2 stops33h 45m

Sydney Kingsford Smith

週二 9/12

21:15-14:55

2 stops28h 40m

$2,104

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週四 1/1

06:35-19:20

2 stops25h 45m

Sydney Kingsford Smith

週一 12/1

12:45-09:55

2 stops32h 10m

$2,187

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Heathrow 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 London Heathrow Airport to Sydney

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Sydney. Price data was last updated on 31 October 2025.

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,058). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,659). 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 LHR to SYD?

Find hourly flight availability from Heathrow to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 11月 2025.

It’s optimal to fly from London Heathrow Airport to Sydney in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the evening.

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

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 5 11月 2025.
Get a feel of what it's like to fly with Singapore Airlines, Cathay Pacific, andQantas Airways from London Heathrow Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,391 reviews
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Cathay Pacific
7.6
Good
1,053 reviews
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qantas Airways
7.5
Good
927 reviews
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
China Southern
7.5
Good
119 reviews
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Etihad Airways
7.4
Good
1,285 reviews
Singapore Airlines
8.1
Very Good
1,391 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Sydney. 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 into for flights to Sydney from London Heathrow?

    Located just 7.5 km from the city centre, Sydney Kingsford Smith is the airport most travellers will use when flying to Sydney from London Heathrow. Booking flights from London Heathrow to Kingsford Smith (SYD) should be relatively easy as there are 3 daily inbound flights from London Heathrow from 14 different airlines.

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

    Departing from London Heathrow Airport to Sydney will take you 28h. There are 17008 km between London Heathrow Airport and Sydney. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    China Southern, at $1,112, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include Air China and China Eastern. China Southern is 45% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for China Eastern. According to our data, you can fly for as low as $961. Users have also found prices from $1,061 and $1,071 on China Airlines and Etihad Airways, respectively.

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

    Looking for the cheapest flight from London Heathrow Airport to Sydney? While on average our users pay $2,154, our data indicates the cheapest price to be $1,197. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,185.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Sydney 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 London Heathrow Airport to Sydney?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,058). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,659). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Sydney on these airlines

Choose from the following airlines for your flight from Heathrow to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 5 11月 2025.
China Southern flights from London Heathrow to Sydney Kingsford Smith
Singapore Airlines flights from London Heathrow to Sydney Kingsford Smith
Malaysia Airlines flights from London Heathrow to Sydney Kingsford Smith

Top 10 airlines flying from Heathrow to Sydney

Discover the top 10 airlines that operate flights from Heathrow to Sydney. 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 5 11月 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$1,112Average$1,579FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest$1,191Average$2,440FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,340Average$1,757FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest$1,512Average$2,107FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,547Average$1,977FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
China AirlinesCheapest$1,576Average$1,721FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,581Average$2,716FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,674Average$1,890FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
British AirwaysCheapest$1,688Average$1,950FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EmiratesCheapest$1,743Average$2,305FlexibilityNo cancel feeOn-time75%
Search Emirates 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 Heathrow to Sydney?

Cheapflights helps you search for flights from Heathrow to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Sydney.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Sydney flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Heathrow to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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