HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$400+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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

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 October 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$914
(Gotogate)

One-way from

$400
(SmartFares)

Popular in

December

Cheapest in

October

Average price

$1,061
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. 11% potential increase in price ($166 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find 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 October 30, 2025.

This Gotogate deal was found by Cheapflights users on 10/28. 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 11/119:15 pmSYD - LHR
2 stops34h 50mTurkish Airlines
Sat 11/226:35 amLHR - SYD
2 stops25h 45mTurkish Airlines
Deal found 10/28$914
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:30 pmSYD - LHR
3 stops39h 00mMultiple Airlines
Sat 12/65:40 pmLHR - SYD
1 stop34h 50mMultiple Airlines
Deal found 10/28$920
This Turkish Airlines deal was found by Cheapflights users on 10/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:15 pmSYD - LHR
2 stops36h 10mTurkish Airlines
Sun 11/2311:30 amLHR - SYD
2 stops44h 50mTurkish Airlines
Deal found 10/28$924
This Turkish Airlines deal was found by Cheapflights users on 10/30. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:15 pmSYD - LHR
2 stops34h 50mTurkish Airlines
Sun 11/234:35 pmLHR - SYD
2 stops39h 45mTurkish Airlines
Deal found 10/30$925
This Gotogate deal was found by Cheapflights users on 10/30. 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.
Thu 11/139:00 pmSYD - LHR
2 stops31h 35mMultiple Airlines
Thu 11/2010:00 pmLHR - SYD
1 stop35h 20mMultiple Airlines
Deal found 10/30$926
This Turkish Airlines deal was found by Cheapflights users on 10/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/49:15 pmSYD - LHR
2 stops29h 50mTurkish Airlines
Sat 11/226:35 amLHR - SYD
2 stops25h 45mTurkish Airlines
Deal found 10/28$927
This Air China deal was found by Cheapflights users on 10/30. 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 11/98:40 pmSYD - LHR
1 stop32h 10mAir China
Sun 11/235:40 pmLHR - SYD
1 stop34h 50mAir China
Deal found 10/30$928
This Booking.com deal was found by Cheapflights users on 10/30. 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 11/1112:00 pmSYD - LHR
1 stop40h 30mChina Eastern
Sat 11/229:00 pmLHR - SYD
1 stop26h 00mChina Eastern
Deal found 10/30$935
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/119:30 pmSYD - LHR
1 stop31h 40mMultiple Airlines
Sat 11/229:05 pmLHR - SYD
3 stops34h 45mMultiple Airlines
Deal found 10/29$937
This Turkish Airlines deal was found by Cheapflights users on 10/29. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:15 pmSYD - LHR
2 stops28h 40mMultiple Airlines
Tue 11/254:35 pmLHR - SYD
2 stops27h 00mMultiple Airlines
Deal found 10/29$938
This Turkish Airlines deal was found by Cheapflights users on 10/29. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:15 pmSYD - LHR
2 stops29h 55mMultiple Airlines
Sun 11/235:45 pmLHR - SYD
2 stops25h 50mMultiple Airlines
Deal found 10/29$941
This Turkish Airlines deal was found by Cheapflights users on 10/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:55 pmSYD - LHR
2 stops29h 00mMultiple Airlines
Mon 11/246:35 amLHR - SYD
2 stops25h 45mMultiple Airlines
Deal found 10/28$943

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 October 30, 2025.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.

Fly from

Sydney

Fly to

Heathrow

Route

Depart

Return

Price

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 11/9

9:15 pm-9:05 pm

2 stops34h 50m

London Heathrow

Sun 11/23

4:35 pm-7:20 pm

2 stops39h 45m

$925

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 11/14

9:30 pm-6:40 am

1 stop44h 10m

London Heathrow

Wed 12/10

8:50 am-6:35 am

1 stop34h 45m

$1,115

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 2/18

11:50 am-7:15 am

1 stop30h 25m

London Heathrow

Tue 7/28

7:50 pm-8:15 am

1 stop27h 25m

$1,261

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 3/16

11:30 am-6:15 am

1 stop29h 45m

London Heathrow

Mon 3/30

8:50 pm-9:45 am

2 stops26h 55m

$1,286

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 12/9

11:20 am-6:20 am

2 stops30h 00m

London Heathrow

Tue 1/6

3:20 pm-9:15 am

2 stops30h 55m

$1,419

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 12/9

2:00 pm-9:10 am

2 stops30h 10m

London Heathrow

Mon 1/5

9:10 am-9:15 am

2 stops37h 05m

$1,419

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 11/23

7:30 pm-5:55 am

3 stops45h 25m

London Heathrow

Sun 12/7

2:15 pm-7:25 am

2 stops30h 10m

$1,618

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 12/9

2:00 pm-12:00 pm

1 stop33h 00m

London Heathrow

Sun 1/4

3:20 pm-6:20 am

2 stops52h 00m

$1,679

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 11/9

12:45 pm-7:40 am

3 stops29h 55m

London Heathrow

Sun 11/23

5:05 pm-7:30 am

3 stops27h 25m

$1,701

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 12/7

10:10 pm-4:55 pm

1 stop29h 45m

London Heathrow

Fri 12/12

9:15 pm-3:30 pm

2 stops31h 15m

$1,884

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
1
2
3

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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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 Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Sydney-London Heathrow Airport flight deals on Cheapflights vs. Gotogate >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 Gotogate the most. Gotogate 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 October 24, 2025.

The best time to book flights from Sydney to London Heathrow Airport is 26 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $806). 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 October 30, 2025.

It’s typically best to fly out from Sydney to London Heathrow Airport in the evening. Doing so could potentially save you 58% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Sydney to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Sydney to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Sydney to London Heathrow Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 30, 2025.
Get a feel of what it's like to fly with Singapore Airlines, Cathay Pacific, and Qantas 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.
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,388 reviews
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Cathay Pacific
7.6
Good
1,044 reviews
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qantas Airways
7.5
Good
925 reviews
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Etihad Airways
7.4
Good
1,284 reviews
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
British Airways
6.7
Okay
7,487 reviews
Singapore Airlines
8.1
Very good
1,388 reviews

Comfort

8.0

Food

7.7

Entertainment

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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 12 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 30h 25m. 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 Cathay Pacific. Our recent data shows that you can find tickets from as low as $956 on this airline. Additional options worth looking into are Malaysia Airlines and Etihad Airways, starting at $999 and $1,005 round-trip. Cathay Pacific is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $806). 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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$956Average$1,276FlexibilityNo cancel feeOn-time72%
Malaysia AirlinesCheapest$999Average$1,148FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$1,005Average$1,332FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$1,086Average$1,449FlexibilityNo cancel feeOn-time70%
Air IndiaCheapest$1,102Average$1,235FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$1,102Average$1,423FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$1,115Average$1,130FlexibilityNo cancel feeOn-time70%
EmiratesCheapest$1,186Average$1,409FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,226Average$1,972FlexibilityNo cancel feeOn-time68%
Qantas AirwaysCheapest$1,301Average$1,764FlexibilityNo cancel feeOn-time74%

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.