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Cheap flights from London Heathrow Airport to Sydney from $754

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
11 3月 — 18 3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 May or September, booked 29 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Heathrow to Sydney

Enter your travel dates to find the best prices.

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 9 2月 2026.

週四 5/316:50
LHR
-
SYD
1 stop32h 10m
Cathay Pacific
週日 22/315:15
SYD
-
LHR
1 stop34h 45m
Cathay Pacific
Deal found 7/2$1,388
週日 7/620:35
LHR
-
SYD
1 stop36h 50m
Air India
週日 5/720:00
SYD
-
LHR
1 stop32h 00m
Air India
Deal found 7/2$1,389
週三 11/321:00
LHR
-
SYD
1 stop29h 35m
China Eastern
週六 21/313:30
SYD
-
LHR
3 stops39h 00m
China Eastern
Deal found 7/2$1,391
週三 4/313:55
LHR
-
SYD
1 stop29h 40m
Etihad Airways
週五 13/321:45
SYD
-
LHR
1 stop27h 45m
Etihad Airways
Deal found 8/2$1,392
週六 7/321:00
LHR
-
SYD
1 stop29h 35m
China Eastern
週四 26/313:30
SYD
-
LHR
3 stops39h 00m
China Eastern
Deal found 8/2$1,393
週四 23/421:00
LHR
-
SYD
2 stops30h 35m
China Southern
週六 9/508:45
SYD
-
LHR
2 stops40h 30m
China Southern
Deal found 7/2$1,395
週日 12/422:10
LHR
-
SYD
1 stop36h 30m
Multiple Airlines
週二 5/521:00
SYD
-
LHR
1 stop31h 30m
Multiple Airlines
Deal found 6/2$1,396
週一 2/319:20
LHR
-
SYD
1 stop24h 15m
Etihad Airways
週五 13/321:45
SYD
-
LHR
1 stop27h 45m
Etihad Airways
Deal found 6/2$1,398
週五 6/306:35
LHR
-
SYD
2 stops37h 00m
Turkish Airlines
週一 16/316:35
SYD
-
LHR
2 stops33h 20m
Turkish Airlines
Deal found 7/2$1,399
週一 4/521:20
LHR
-
SYD
1 stop26h 40m
China Eastern
週三 20/520:30
SYD
-
LHR
1 stop31h 10m
China Eastern
Deal found 6/2$1,401
週四 12/320:30
LHR
-
SYD
3 stops35h 20m
Multiple Airlines
週四 19/321:00
SYD
-
LHR
2 stops31h 35m
Multiple Airlines
Deal found 7/2$1,402
週二 15/921:20
LHR
-
SYD
1 stop26h 40m
China Eastern
週二 27/1021:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 7/2$1,403

Find 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 9 2月 2026.

Round-trip from

$1,383

One-way from

$754

Popular in

December

Cheapest in

May

Average price

$1,808

Good round-trip deal

$1,747 or less
China Eastern
  • China Eastern
  • 3/3-3/5
  • 2 total stops
  • 60h 45m total
  • London to Sydney
Search Deals
China Southern
  • China Southern
  • 12/5
  • 2 total stops
  • 30h 35m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($237 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($77 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip 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 9 2月 2026.
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

週五 29/5

20:50-06:10

1 stop24h 20m

Sydney Kingsford Smith

週五 12/6

15:40-15:05

1 stop32h 25m

$1,465

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週日 19/4

09:30-16:50

1 stop22h 20m

Sydney Kingsford Smith

週日 26/4

15:40-07:00

1 stop24h 20m

$1,465

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週三 3/6

14:45-06:10

1 stop30h 25m

Sydney Kingsford Smith

週二 30/6

15:40-07:00

1 stop24h 20m

$1,465

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週四 28/5

20:50-16:50

1 stop35h 00m

Sydney Kingsford Smith

週二 16/6

15:40-07:00

1 stop24h 20m

$1,473

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週五 3/4

20:50-07:10

1 stop24h 20m

Sydney Kingsford Smith

週一 29/6

21:30-12:45

1 stop24h 15m

$1,475

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週三 29/4

09:30-16:50

1 stop22h 20m

Sydney Kingsford Smith

週五 22/5

21:30-12:45

1 stop24h 15m

$1,475

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週日 22/2

22:35-17:55

2 stops32h 20m

Sydney Kingsford Smith

週一 16/3

16:35-16:10

2 stops34h 35m

$1,487

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週三 11/3

17:50-12:00

1 stop31h 10m

Sydney Kingsford Smith

週日 15/3

15:15-07:00

1 stop26h 45m

$1,523

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週一 2/3

22:05-20:50

1 stop35h 45m

Sydney Kingsford Smith

週一 16/3

15:15-11:10

2 stops30h 55m

$1,604

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

週四 26/2

18:00-19:20

2 stops38h 20m

Sydney Kingsford Smith

週六 7/3

21:45-14:55

2 stops28h 10m

$1,634

Flights are sorted by cheapest return flights first.

Deals found on 9/2

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 6 February 2026.

Booking 29 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 $987). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,532). 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 9 2月 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Sydney as you normally would.

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 9 2月 2026.
Get a feel of what it's like to fly with Cathay Pacific, Etihad Airways, andChina Southern 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.
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,160 reviews
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Etihad Airways
7.3
Good
1,389 reviews
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
China Southern
7.3
Good
137 reviews
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Malaysia Airlines
7.3
Good
293 reviews
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Air India
5.5
Fair
2,966 reviews
Cathay Pacific
7.6
Good
1,160 reviews
Check prices

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Crew

8.1

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

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 15 different airlines.

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

    Departing from London Heathrow Airport to Sydney will take you 24h 20m. There are 17008 km between London Heathrow Airport and Sydney.

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

    Air China, at $991, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include China Southern and China Eastern. Air China is 47% 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 $711. Users have also found prices from $716 and $746 on Air China and China Southern, 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 $2,060, our data indicates the cheapest price to be $1,459. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,034.

  • 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 $987). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,532). 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
Penrith
Manly
Katoomba
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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 9 2月 2026.
China Southern flights from London Heathrow to Sydney Kingsford Smith
Malaysia Airlines flights from London Heathrow to Sydney Kingsford Smith
Singapore 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 9 2月 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$991Average$2,106FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,031Average$1,544FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,228Average$1,459FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest$1,358Average$1,969FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,434Average$1,965FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,438Average$1,697FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,480Average$2,443FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,530Average$1,629FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
British AirwaysCheapest$1,565Average$1,693FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Cathay PacificCheapest$1,570Average$1,798FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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