Cheap flights from Sydney to London Heathrow Airport from $739

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
27 Aug — 3 Sep1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in October or February, booked 25 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 22 August 2025.

Round-trip from

$1,482

One-way from

$739

Popular in

December

Cheapest in

October

Average price

$2,064

Good round-trip deal

$2,059 or less

Good one-way deal

$1,512 or less
Air China
  • Air China
  • 16/10-14/11
  • 3 total stops
  • 67h 20m total
  • Sydney to London
Etihad Airways
  • Etihad Airways
  • 15/10
  • 1 total stop
  • 36h 05m total
  • Sydney to London
Highest demand for flights based on searches. 11% potential increase in price ($426 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($112 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Sydney Kingsford Smith to London Heathrow.
Price to beat on a one-way flight from Sydney Kingsford Smith to London Heathrow.

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 22 August 2025.

Thu 16/1021:00SYD - LHR
2 stops32h 30mMultiple Airlines
Fri 14/1117:40LHR - SYD
1 stop34h 50mMultiple Airlines
Deal found 20/8$1,482
Tue 9/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/920:25LHR - SYD
1 stop33h 25mAir China
Deal found 21/8$1,483
Tue 30/921:45SYD - LHR
1 stop30h 15mChina Southern
Tue 14/1022:10LHR - SYD
1 stop36h 15mChina Southern
Deal found 21/8$1,485
Sun 7/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 21/8$1,486
Sat 6/919:40SYD - LHR
1 stop31h 05mMultiple Airlines
Wed 10/922:40LHR - SYD
2 stops34h 45mMultiple Airlines
Deal found 21/8$1,488
Sun 5/1013:00SYD - LHR
2 stops39h 40mChina Eastern
Tue 28/1021:00LHR - SYD
1 stop26h 00mChina Eastern
Deal found 20/8$1,491
Mon 3/1121:30SYD - LHR
1 stop31h 40mEtihad Airways
Mon 24/1113:55LHR - SYD
1 stop29h 40mEtihad Airways
Deal found 20/8$1,493
Sat 6/919:40SYD - LHR
1 stop33h 50mAir China
Thu 18/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 20/8$1,494
Tue 21/1022:15SYD - LHR
1 stop30h 45mChina Southern
Tue 28/1021:30LHR - SYD
2 stops35h 50mChina Southern
Deal found 21/8$1,496
Fri 10/1016:40SYD - LHR
1 stop30h 05mEtihad Airways
Sat 22/1119:20LHR - SYD
1 stop35h 35mEtihad Airways
Deal found 21/8$1,497
Thu 11/919:40SYD - LHR
2 stops57h 35mAir China
Thu 18/922:00LHR - SYD
2 stops31h 50mAir China
Deal found 20/8$1,502
Fri 10/1021:30SYD - LHR
1 stop27h 45mEtihad Airways
Mon 24/1108:55LHR - SYD
1 stop22h 00mEtihad Airways
Deal found 20/8$1,504

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 22 August 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

Mon 29/9

21:30-18:45

1 stop30h 15m

London Heathrow

Sat 1/11

13:55-17:55

1 stop41h 00m

$1,572

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 29/9

21:30-12:45

1 stop24h 15m

London Heathrow

Sun 2/11

20:55-06:35

1 stop22h 40m

$1,572

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 3/10

21:30-12:45

1 stop24h 15m

London Heathrow

Sun 2/11

20:55-06:35

1 stop22h 40m

$1,572

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/2

16:35-06:40

1 stop25h 05m

London Heathrow

Tue 24/3

20:55-17:55

1 stop34h 00m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 3/2

16:35-06:40

1 stop25h 05m

London Heathrow

Sat 21/3

20:55-06:35

1 stop22h 40m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 7/2

21:30-12:05

1 stop25h 35m

London Heathrow

Sat 21/3

20:55-06:35

1 stop22h 40m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 7/2

21:30-12:05

1 stop25h 35m

London Heathrow

Tue 24/3

20:55-17:55

1 stop34h 00m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 1/2

16:35-06:40

1 stop25h 05m

London Heathrow

Tue 24/3

20:55-17:55

1 stop34h 00m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 3/2

16:35-06:40

1 stop25h 05m

London Heathrow

Tue 24/3

20:55-17:55

1 stop34h 00m

$1,574

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 3/2

16:35-06:40

1 stop25h 05m

London Heathrow

Sun 22/3

08:55-17:55

1 stop22h 00m

$1,574

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 24 results
1
2
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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 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 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 return flight from Sydney to Heathrow. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Sydney to London Heathrow Airport, you should look to book at least 25 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 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 $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 22 August 2025.

It’s optimal to fly from Sydney to London Heathrow Airport in the evening. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at midday.

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

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

Travellers 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 at midday flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight 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 22 August 2025.
Read through reviews of airlines operating flights from Sydney to London Heathrow Airport, such as Singapore Airlines, Cathay Pacific, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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.

Food

7.7

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.0

Entertainment

8.0

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 28 airlines have flights from the Sydney airport to London Heathrow. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

    Etihad Airways can get you from Sydney to London Heathrow Airport in just under 30h 15m. Your travel time can differ by up to . Airlines will cover a distance of 17008 km.

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

    Currently priced at $1,206, China Southern will fly you from Sydney to London Heathrow Airport and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from $1,239 and $1,303, respectively. China Southern is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Sydney to London Heathrow Airport?

    While on average a flight from Sydney to London Heathrow Airport is generally $8,126, our data shows the cheapest flight currently is $1,405. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,297 for that flight.

  • Where are the most common stopover locations when flying from Sydney to London Heathrow Airport?

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be visited by traveling about 21.6 km, 16.9 km, and 17.3 km respectively from Singapore Changi. Travellers can rent a car at Singapore Changi for an average daily rate of $131 to make sightseeing during their stopover a little easier.

  • What are some popular points of interest to see during a stopover in Kuala Lumpur?

    Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia are the most popular attractions in Kuala Lumpur if you're in need of something to do during your stopover. Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia can be accessed by travelling approximately 46.6 km, 44.9 km, and 44.8 km, respectively from Kuala Lumpur Intl. Travellers can book a car hire at Kuala Lumpur Intl for about $52 per day to make their sightseeing more efficient.

  • Where are the least popular stopover locations for Sydney to London Heathrow Airport flights?

  • 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 holiday 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 $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Salisbury
Horsham
Southall
Chatham
Dover
Dorking
Chertsey

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Fly from Sydney to Heathrow on these airlines

Choose from the following airlines for your flight from Sydney to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 22 August 2025.

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 647,157 searches. Data last updated 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,239Average$1,547FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,303Average$1,661FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China AirlinesCheapest$1,480Average$1,747FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Turkish AirlinesCheapest$1,483Average$1,713FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest$1,499Average$2,216FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
SWISSCheapest$1,524Average$2,159FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Japan AirlinesCheapest$1,560Average$2,079FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Asiana AirlinesCheapest$1,612Average$1,912FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Austrian AirlinesCheapest$1,626Average$1,972FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SriLankan AirlinesCheapest$1,671Average$1,938FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Sydney today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sydney to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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