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Cheap flights from Sydney to London from £310

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to London departing on 17/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

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Multiple Airlines Logo
21:00 - 16:20SYD-LHR
30h 20m1 stop
Multiple Airlines Logo
20:25 - 14:50LHR-SYD
33h 25m1 stop
£707Multiple Airlines
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Tue, 24 Mar - Thu, 9 Apr
Multiple Airlines Logo
21:15 - 09:55SYD-LHR
47h 40m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£708Multiple Airlines
Find Deal
Sun, 23 Nov - Fri, 5 Dec
Multiple Airlines Logo
21:15 - 16:10SYD-LHR
29h 55m2 stops
Multiple Airlines Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
£709Multiple Airlines
Find Deal
Sat, 7 Feb - Fri, 6 Mar
Cathay Pacific Logo
22:20 - 15:00SYD-LHR
27h 40m1 stop
Cathay Pacific Logo
17:50 - 09:35LHR-SYD
28h 45m1 stop
£714Cathay Pacific
Find Deal
Mon, 17 Nov - Fri, 21 Nov
Cathay Pacific Logo
15:15 - 06:30SYD-LHR
26h 15m1 stop
Cathay Pacific Logo
22:05 - 12:00LHR-SYD
26h 55m1 stop
£715Cathay Pacific
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Thu, 5 Feb - Wed, 25 Feb
Turkish Airlines Logo
22:10 - 16:55SYD-LHR
28h 45m2 stops
Turkish Airlines Logo
13:15 - 19:15LHR-SYD
45h 00m2 stops
£718Turkish Airlines
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Sun, 29 Mar - Sun, 26 Apr
China Eastern Logo
13:30 - 17:30SYD-LHR
39h 00m2 stops
China Eastern Logo
21:00 - 10:00LHR-SYD
26h 00m1 stop
£722China Eastern
Find Deal
Sun, 1 Mar - Sun, 22 Mar
China Eastern Logo
21:30 - 17:30SYD-LHR
31h 00m1 stop
China Eastern Logo
21:20 - 10:00LHR-SYD
26h 40m1 stop
£726China Eastern
Find Deal
Mon, 16 Mar - Tue, 31 Mar
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
Air China Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
£744Air China
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Fri, 27 Feb - Thu, 12 Mar
Turkish Airlines Logo
21:15 - 13:30SYD-LHR
27h 15m2 stops
Turkish Airlines Logo
22:35 - 19:20LHR-SYD
33h 45m2 stops
£750Turkish Airlines
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Sun, 1 Feb - Wed, 18 Feb

Air China flights from Sydney to London Heathrow Airport

Our best Air China deals on Sydney to London Heathrow Airport flight tickets
Air China
27 Feb
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
12 Mar
LHR17:40London Heathrow
34h 50m
1 stop
SYD15:30Sydney Kingsford Smith
£744
Find similar
Air China
11 Nov
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
12 Dec
LHR20:25London Heathrow
32h 05m
1 stop
SYD15:30Sydney Kingsford Smith
£765
Find similar
Air China
11 Nov
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
16 Dec
LHR20:25London Heathrow
32h 05m
1 stop
SYD15:30Sydney Kingsford Smith
£797
Find similar

China Eastern flights from Sydney to London Heathrow Airport

Our best China Eastern deals on Sydney to London Heathrow Airport flight tickets
China Eastern
1 Mar
SYD13:30Sydney Kingsford Smith
39h 00m
2 stops
LHR17:30London Heathrow
22 Mar
LHR21:00London Heathrow
26h 00m
1 stop
SYD10:00Sydney Kingsford Smith
£722
Find similar
China Eastern
16 Mar
SYD21:30Sydney Kingsford Smith
31h 00m
1 stop
LHR17:30London Heathrow
31 Mar
LHR21:20London Heathrow
26h 40m
1 stop
SYD10:00Sydney Kingsford Smith
£726
Find similar
China Eastern
18 Mar
SYD21:30Sydney Kingsford Smith
31h 00m
1 stop
LHR17:30London Heathrow
6 Apr
LHR21:20London Heathrow
26h 40m
1 stop
SYD09:00Sydney Kingsford Smith
£728
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 6 November 2025.
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

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 24/3

21:00-16:20

1 stop30h 20m

London Heathrow

Thu 9/4

20:25-14:50

1 stop33h 25m

£707

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 23/11

21:15-09:55

2 stops47h 40m

London Heathrow

Fri 5/12

20:25-15:30

1 stop32h 05m

£708

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 7/2

21:15-16:10

2 stops29h 55m

London Heathrow

Fri 6/3

17:40-15:30

1 stop34h 50m

£709

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 17/11

22:20-15:00

1 stop27h 40m

London Heathrow

Fri 21/11

17:50-09:35

1 stop28h 45m

£714

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 5/2

15:15-06:30

1 stop26h 15m

London Heathrow

Wed 25/2

22:05-12:00

1 stop26h 55m

£715

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 29/3

22:10-16:55

2 stops28h 45m

London Heathrow

Sun 26/4

13:15-19:15

2 stops45h 00m

£718

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 1/3

13:30-17:30

2 stops39h 00m

London Heathrow

Sun 22/3

21:00-10:00

1 stop26h 00m

£722

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 16/3

21:30-17:30

1 stop31h 00m

London Heathrow

Tue 31/3

21:20-10:00

1 stop26h 40m

£726

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 27/2

20:40-17:50

1 stop32h 10m

London Heathrow

Thu 12/3

17:40-15:30

1 stop34h 50m

£744

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 1/2

21:15-13:30

2 stops27h 15m

London Heathrow

Wed 18/2

22:35-19:20

2 stops33h 45m

£750

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Sydney to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sydney and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from Sydney to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £815. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Sydney averaging around £828.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Sydney is on a Friday. momondo users have found tickets for Friday departures for as low as £1,128. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £1,502.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Sydney to London Heathrow Airport in the morning for as low as £977. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £1,437 on average. Flights to London Heathrow Airport from Sydney in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Sydney Kingsford Smith to London Heathrow flight route?

Fly from Sydney Kingsford Smith to London Heathrow for the best Sydney Kingsford Smith - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £999 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Sydney for as low as £915 on momondo.

What cabin class options are available on Sydney Kingsford Smith to London Heathrow flights?

There are 3 cabin classes available to choose from on Sydney Kingsford Smith to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sydney to London Heathrow Airport flights?

You could potentially save up to 26% on your flight if you consider stops on a Sydney to London Heathrow Airport flight.

How have Sydney to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for Sydney to London Heathrow Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to London Heathrow Airport (SYD to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to London Heathrow Airport

Fastest flight time

24h 25m

Direct flights

Every day
The fastest flight from Sydney to London Heathrow Airport takes 24h 25m
Direct flights go from Sydney to London Heathrow Airport every day.
Search flight deals

  • How far is Sydney Kingsford Smith to London Heathrow by plane?

    A flight from Sydney Kingsford Smith to London Heathrow will travel around 10566.1 mi. Typically, this will take 26h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to London Heathrow Airport?

    Prices for flights from Sydney Kingsford Smith Airport to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to London Heathrow Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Sydney to London Heathrow Airport?

  • What is the most popular airline from Sydney to London Heathrow Airport?

Best airlines flying from Sydney to London Heathrow Airport

Compare and see reviews for airlines that fly from Sydney to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £622Free CancellationRating
7.5
119 reviews
Search China Southern flights
Air ChinaPriceFrom £690Free CancellationRating
7.1
122 reviews
Search Air China flights
China EasternPriceFrom £700Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Air IndiaPriceFrom £708Free CancellationRating
5.5
2,942 reviews
Search Air India flights
Etihad AirwaysPriceFrom £749Free CancellationRating
7.4
1,285 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom £752Free CancellationRating
7.3
4,034 reviews
Search Turkish Airlines flights
Cathay PacificPriceFrom £766Free CancellationRating
7.6
1,053 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom £776Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
Malaysia AirlinesPriceFrom £802Free CancellationRating
7.3
278 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom £812Free CancellationRating
8.1
1,391 reviews
Search Singapore Airlines flights

  • Qantas Airways Flights From Sydney to London Heathrow Airport

    Qantas Airways is one of the most popular airlines flying from Sydney to London Heathrow Airport, operating 7 flights/week on average for this route. A good Qantas Airways flight deal for Sydney to London Heathrow Airport starts from £969 round-trip, up to an average price of £1,197. Our users have rated Qantas Airways at 7.5/10.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Sydney to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Sydney.

Can I find flights from Sydney to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Sydney with this policy.

How can momondo help me find flights from Sydney to London?

momondo helps you find the best flight between Sydney and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Sydney to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sydney to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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