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$520+ Cheap flights from Heathrow (LHR) to Sydney (SYD)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap flight deals from Heathrow to Sydney

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 March 13, 2026.

This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:20 pm
LHR
-
SYD
3 stops49h 40m
China Eastern
Sun 6/710:05 am
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 3/8$942
This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:30 pm
LHR
-
SYD
2 stops48h 55m
China Southern
Mon 11/239:20 am
SYD
-
LHR
2 stops44h 15m
China Southern
Deal found 3/9$944
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:20 pm
LHR
-
SYD
1 stop26h 40m
China Eastern
Mon 6/810:00 am
SYD
-
LHR
2 stops41h 40m
China Eastern
Deal found 3/8$948
This China Eastern deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:20 pm
LHR
-
SYD
1 stop26h 40m
China Eastern
Sun 5/3110:05 am
SYD
-
LHR
3 stops41h 35m
China Eastern
Deal found 3/11$949
This Flightnetwork deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:10 pm
LHR
-
SYD
1 stop25h 15m
China Southern
Sat 6/132:10 pm
SYD
-
LHR
1 stop38h 10m
China Southern
Deal found 3/10$951
This Mytrip deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:10 pm
LHR
-
SYD
1 stop36h 15m
China Southern
Mon 4/279:45 pm
SYD
-
LHR
2 stops51h 30m
China Southern
Deal found 3/11$952
This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:20 pm
LHR
-
SYD
1 stop30h 15m
China Eastern
Wed 6/1711:00 am
SYD
-
LHR
1 stop40h 40m
China Eastern
Deal found 3/9$953
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:20 pm
LHR
-
SYD
2 stops49h 45m
China Eastern
Sun 6/710:05 am
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 3/8$955
This China Eastern deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:20 pm
LHR
-
SYD
3 stops49h 40m
China Eastern
Tue 10/2011:05 am
SYD
-
LHR
3 stops41h 35m
China Eastern
Deal found 3/11$956
This Mytrip deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:25 pm
LHR
-
SYD
1 stop33h 25m
Multiple Airlines
Sun 5/1710:05 am
SYD
-
LHR
2 stops41h 35m
Multiple Airlines
Deal found 3/12$957

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$942
(China Eastern)

One-way from

$520
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$1,301
Provider with most accurate pricing for London Heathrow-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Sydney Kingsford Smith flights.
Search Deals
From London Heathrow to Sydney Kingsford Smith
Search Deals
One-way flight from London Heathrow to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($118 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 13, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 5/12

9:20 pm-9:00 am

1 stop26h 40m

Sydney Kingsford Smith

Thu 6/25

8:30 pm-6:40 pm

1 stop31h 10m

$1,089

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 4/21

6:30 pm-7:10 pm

2 stops39h 40m

Sydney Kingsford Smith

Tue 4/28

8:50 pm-4:40 pm

2 stops28h 50m

$1,127

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 6/10

9:20 pm-12:35 pm

1 stop30h 15m

Sydney Kingsford Smith

Wed 7/1

8:30 pm-6:40 pm

1 stop31h 10m

$1,144

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 6/4

6:30 am-7:10 pm

2 stops27h 40m

Sydney Kingsford Smith

Sun 6/7

3:40 pm-3:10 pm

2 stops32h 30m

$1,182

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 4/21

9:20 pm-9:00 am

1 stop26h 40m

Sydney Kingsford Smith

Tue 4/28

10:05 am-6:40 pm

2 stops41h 35m

$1,192
Quickest round-trip

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 4/24

2:45 pm-6:10 am

1 stop30h 25m

Sydney Kingsford Smith

Thu 4/30

8:50 pm-12:45 pm

1 stop24h 55m

$1,234

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 6/4

6:55 pm-8:15 am

1 stop28h 20m

Sydney Kingsford Smith

Sun 6/7

10:15 am-5:05 pm

2 stops39h 50m

$1,275

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 4/9

9:20 pm-8:00 am

3 stops49h 40m

Sydney Kingsford Smith

Thu 4/16

10:00 am-6:40 pm

3 stops41h 40m

$1,437
Cheapest one-way

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 4/8

9:20 pm-8:00 am

3 stops49h 40m

$538

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 4/14

9:45 pm-4:50 pm

1 stop34h 05m

$667

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Sydney in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Heathrow to Sydney. Price data was last updated on March 6, 2026.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Sydney, you should look to book at least 32 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 London Heathrow Airport to Sydney?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $781). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,063). 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 March 13, 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.

How much does it cost to fly round-trip 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 March 13, 2026.
Read reviews from past customers who have flown Singapore Airlines,China Southern, andEtihad Airways from London Heathrow Airport to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Singapore Airlines
8.2
Very good
1,475 reviews
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
China Southern
7.4
Good
142 reviews
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Etihad Airways
7.3
Good
1,426 reviews
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
British Airways
6.7
Okay
7,786 reviews
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Air India
5.5
Fair
2,969 reviews
Singapore Airlines
8.2
Very good
1,475 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

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?

    Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from London Heathrow to Sydney. You should not have trouble finding flights to Kingsford Smith from London Heathrow; the airport handles an average of 3 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the Sydney airport from London Heathrow. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

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

    Airlines like China Eastern and Turkish Airlines fly from London Heathrow Airport to Sydney in about 26h 40m. The time it takes to get you to your destination can typically vary by up to 13h. London Heathrow Airport and Sydney are separated by a distance of 10568 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $757, Etihad Airways will fly you from London Heathrow Airport to Sydney and back. In addition to Etihad Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Air India - these airlines can fly you to your destination from $840 and $852, respectively. These flights start at 43% lower than the current average price 3 months from now.

  • 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 vacation 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $781). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,063). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Sydney flights

Top 7 airlines flying from Heathrow to Sydney

Discover the top 7 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 2,558,603 searches. Data last updated March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$757Average$1,391FlexibilityNo cancel feeOn-time75%
China SouthernCheapest$840Average$989FlexibilityNo cancel feeOn-time69%
Air IndiaCheapest$852Average$1,137FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$866Average$1,025FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$1,015Average$1,685FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$1,138Average$1,190FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$1,210Average$1,577FlexibilityNo cancel feeOn-time70%

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