HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$555+ Cheap flights from Sydney (SYD) to Heathrow (LHR)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sydney to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sydney to Heathrow

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 April 18, 2026.

This Etihad Airways deal was found by Cheapflights users on 4/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:35 pm
SYD
-
LHR
1 stop32h 55m
Etihad Airways
Sun 11/157:20 pm
LHR
-
SYD
1 stop24h 15m
Etihad Airways
Deal found 4/16$956
This FlightHub deal was found by Cheapflights users on 4/15. 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 11/28:15 am
SYD
-
LHR
2 stops42h 40m
Multiple Airlines
Mon 11/235:40 pm
LHR
-
SYD
2 stops39h 15m
Multiple Airlines
Deal found 4/15$1,071
This China Eastern deal was found by Cheapflights users on 4/13. 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 6/1410:05 am
SYD
-
LHR
3 stops41h 35m
China Eastern
Tue 6/239:20 pm
LHR
-
SYD
1 stop30h 15m
China Eastern
Deal found 4/13$1,138
This Super.com deal was found by Cheapflights users on 4/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:40 pm
SYD
-
LHR
1 stop32h 25m
Etihad Airways
Wed 5/208:45 pm
LHR
-
SYD
1 stop35h 05m
Etihad Airways
Deal found 4/15$1,151
This Gotogate deal was found by Cheapflights users on 4/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/313:40 pm
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Mon 6/19:30 am
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Deal found 4/13$1,154
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:40 pm
SYD
-
LHR
1 stop32h 25m
Etihad Airways
Sat 5/309:45 pm
LHR
-
SYD
1 stop34h 05m
Etihad Airways
Deal found 4/14$1,155
This Priceline deal was found by Cheapflights users on 4/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:40 pm
SYD
-
LHR
1 stop33h 45m
Multiple Airlines
Wed 11/45:40 pm
LHR
-
SYD
2 stops38h 30m
Multiple Airlines
Deal found 4/17$1,160
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:40 pm
SYD
-
LHR
1 stop36h 40m
Etihad Airways
Mon 5/119:30 am
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Deal found 4/13$1,162

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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,138
(China Eastern)

One-way from

$555
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,342
Provider with most accurate pricing for Sydney Kingsford Smith-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-London Heathrow flights.
Search Deals
From Sydney Kingsford Smith to London Heathrow
Search Deals
One-way flight from Sydney Kingsford Smith to London Heathrow
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 6/7

3:40 pm-7:00 am

1 stop24h 20m

London Heathrow

Tue 6/16

9:45 pm-4:50 pm

1 stop34h 05m

$1,198

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 5/18

7:55 am-6:50 pm

1 stop43h 55m

London Heathrow

Sun 5/31

7:35 pm-6:20 am

1 stop25h 45m

$1,438

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 5/7

8:45 pm-8:25 pm

1 stop32h 40m

London Heathrow

Tue 10/20

9:55 pm-7:10 am

1 stop23h 15m

$1,513

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 8/5

9:05 pm-4:00 pm

2 stops27h 55m

London Heathrow

Sat 9/5

6:30 am-7:10 pm

2 stops27h 40m

$1,545

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 9/11

10:05 am-6:40 pm

3 stops65h 35m

London Heathrow

Mon 10/19

9:20 pm-9:00 am

3 stops73h 40m

$1,569

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 6/7

9:05 pm-4:40 pm

2 stops28h 35m

London Heathrow

Tue 6/16

6:00 pm-7:10 pm

2 stops40h 10m

$1,619

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 7/23

9:05 pm-10:25 pm

2 stops34h 20m

London Heathrow

Thu 8/13

6:30 am-7:10 pm

2 stops27h 40m

$1,699

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 5/17

5:00 pm-2:00 pm

2 stops30h 00m

London Heathrow

Thu 5/21

9:05 am-5:30 pm

1 stop23h 25m

$1,750

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 7/16

9:05 pm-4:40 pm

2 stops28h 35m

London Heathrow

Thu 7/30

6:30 am-7:10 pm

2 stops27h 40m

$1,805

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 9/2

10:20 am-5:05 pm

2 stops39h 45m

London Heathrow

Wed 9/23

6:10 pm-6:10 am

2 stops27h 00m

$1,861

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Sydney to Heathrow

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 Sydney to Heathrow in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
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 Sydney-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-London Heathrow Airport 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 Sydney-London Heathrow Airport 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 Sydney to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sydney 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 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 round-trip flight from Sydney to Heathrow. Price data was last updated on April 10, 2026.

The best time to book flights from Sydney to London Heathrow Airport is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,080). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,717). 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 April 18, 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 to fly round-trip 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 April 18, 2026.
Get a feel of what it's like to fly with Cathay Pacific,Qantas Airways, andEtihad Airways from Sydney to London Heathrow Airport 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
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Cathay Pacific
7.6
Good
1,276 reviews
Cathay Pacific
7.6
Good
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Qantas Airways
7.5
Good
1,019 reviews
Cathay Pacific
7.6
Good
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Etihad Airways
7.3
Good
1,434 reviews
Cathay Pacific
7.6
Good
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Air China
7.3
Good
146 reviews
Cathay Pacific
7.6
Good
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
British Airways
6.7
Okay
7,892 reviews
Cathay Pacific
7.6
Good
1,276 reviews

Crew

8.1

Overall

7.6

Entertainment

7.8

Comfort

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕

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 11 airlines have flights from the Sydney airport to London Heathrow. It is only a 4.6 mi journey to Kingsford Smith (SYD) from Sydney’s city center.

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

    Departing from Sydney to London Heathrow Airport will take you 24h 20m. There are 10568 mi between Sydney and London Heathrow Airport. This flight may include one or multiple stops.

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

    Our cheapest airline available from Sydney to London Heathrow Airport is Air China. Our recent data shows that you can find tickets from as low as $901 on this airline. Additional options worth looking into are Etihad Airways and Cathay Pacific, starting at $964 and $1,015 round-trip. Air China is 31% 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 cheapest airlines for a one-way flight from Sydney to London Heathrow Airport are Etihad Airways ($300), Thai Airways ($609), and Qatar Airways ($641).

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,080). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,717). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to Heathrow

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

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 2,558,603 searches. Data last updated April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$901Average$1,412FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$964Average$1,161FlexibilityNo cancel feeOn-time75%
Cathay PacificCheapest$1,015Average$1,693FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$1,016Average$1,115FlexibilityNo cancel feeOn-time70%
Singapore AirlinesCheapest$1,061Average$1,462FlexibilityNo cancel feeOn-time81%
Air IndiaCheapest$1,102Average$1,232FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,102Average$1,457FlexibilityNo cancel feeOn-time68%
British AirwaysCheapest$1,174Average$1,557FlexibilityNo cancel feeOn-time70%
Qantas AirwaysCheapest$1,218Average$1,851FlexibilityNo cancel feeOn-time74%
EmiratesCheapest$1,229Average$1,562FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights