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Heathrow

$450+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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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 March 17, 2026.

This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:05 am
SYD
-
LHR
1 stop42h 15m
China Southern
Thu 6/1110:10 pm
LHR
-
SYD
1 stop36h 15m
China Southern
Deal found 3/12$852
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:05 am
SYD
-
LHR
1 stop42h 15m
China Southern
Fri 6/1210:10 pm
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 3/12$860
This Gotogate deal was found by Cheapflights users on 3/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:40 pm
SYD
-
LHR
1 stop33h 45m
Air China
Fri 5/2910:40 pm
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 3/15$889
This Booking.com deal was found by Cheapflights users on 3/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:10 pm
SYD
-
LHR
1 stop38h 10m
China Southern
Sun 9/610:10 pm
LHR
-
SYD
1 stop36h 15m
China Southern
Deal found 3/13$899
This Gotogate deal was found by Cheapflights users on 3/14. 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.
Tue 6/97:40 pm
SYD
-
LHR
1 stop31h 00m
Air China
Tue 6/1610:40 pm
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 3/14$901
This Gotogate deal was found by Cheapflights users on 3/14. 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.
Sun 5/317:40 pm
SYD
-
LHR
1 stop33h 45m
Air China
Thu 6/1110:40 pm
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 3/14$902
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:40 pm
SYD
-
LHR
1 stop31h 00m
Air China
Tue 5/2610:40 pm
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 3/12$904
This Air China deal was found by Cheapflights users on 3/14. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:40 pm
SYD
-
LHR
1 stop31h 00m
Air China
Sun 5/1710:40 pm
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 3/14$925
This FlightHub deal was found by Cheapflights users on 3/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/103:00 pm
SYD
-
LHR
2 stops35h 40m
Multiple Airlines
Sun 5/1710:40 pm
LHR
-
SYD
1 stop31h 10m
Multiple Airlines
Deal found 3/14$936

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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$852
(Gotogate)

One-way from

$450
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,223
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 ($96 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 March 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 March 17, 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

Fri 6/5

10:10 pm-4:30 pm

1 stop27h 20m

London Heathrow

Mon 6/22

9:10 pm-10:45 am

1 stop28h 35m

$1,133

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 5/19

9:05 pm-9:05 pm

2 stops33h 00m

London Heathrow

Sat 5/23

6:30 am-7:10 pm

2 stops27h 40m

$1,159
Quickest round-trip

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 5/19

3:40 pm-12:45 pm

1 stop30h 05m

London Heathrow

Sat 5/23

8:45 pm-6:10 am

1 stop24h 25m

$1,176

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 7/16

10:10 pm-4:30 pm

1 stop27h 20m

London Heathrow

Fri 8/14

9:10 pm-10:45 am

1 stop28h 35m

$1,218

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 5/31

10:05 am-6:40 pm

3 stops65h 35m

London Heathrow

Thu 6/11

9:20 pm-8:00 am

3 stops49h 40m

$1,222

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 6/5

9:05 pm-4:40 pm

2 stops28h 35m

London Heathrow

Mon 6/22

6:30 am-7:10 pm

2 stops27h 40m

$1,227

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 5/3

3:40 pm-12:45 pm

1 stop30h 05m

London Heathrow

Tue 8/18

9:45 pm-4:50 pm

1 stop34h 05m

$1,231
Cheapest one-way

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 6/9

10:05 am-6:40 pm

3 stops65h 35m

$528

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 6/15

10:00 am-6:40 pm

3 stops41h 40m

$601
Quickest one-way

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 7/24

10:10 pm-4:30 pm

1 stop27h 20m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 16 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 March.
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
Trip.comPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 March 13, 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 $662). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,239). 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 March 17, 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 March 17, 2026.
Get a feel of what it's like to fly with Emirates,Cathay Pacific, andQantas 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.
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines
Emirates
8.1
Very good
3,543 reviews
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines
Cathay Pacific
7.6
Good
1,212 reviews
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines
Qantas Airways
7.5
Good
1,005 reviews
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines
Etihad Airways
7.3
Good
1,426 reviews
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines
British Airways
6.7
Okay
7,797 reviews
Emirates
8.1
Very good
3,543 reviews

Comfort

8.0

Food

7.9

Boarding

8.1

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Namakajjo,Feb 2026

EBB - DXB

Emirates is the best airline in the world Big up Emirates airlines

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 10 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 27h 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 Etihad Airways. Our recent data shows that you can find tickets from as low as $1,005 on this airline. Additional options worth looking into are Cathay Pacific and China Airlines, starting at $1,015 and $1,016 round-trip. Etihad Airways is 23% 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 $662). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,239). 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
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,005Average$1,161FlexibilityNo cancel feeOn-time75%
Cathay PacificCheapest$1,015Average$1,227FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$1,016Average$1,115FlexibilityNo cancel feeOn-time70%
Singapore AirlinesCheapest$1,061Average$1,308FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,102Average$1,594FlexibilityNo cancel feeOn-time68%
British AirwaysCheapest$1,174Average$1,557FlexibilityNo cancel feeOn-time70%
EmiratesCheapest$1,186Average$1,443FlexibilityNo cancel feeOn-time75%
Air ChinaCheapest$1,216Average$1,457FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,218Average$1,800FlexibilityNo cancel feeOn-time74%
Thai AirwaysCheapest$1,564Average$1,818FlexibilityNo cancel feeOn-time77%

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