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Cheap flights from Sydney to London from $419

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 10/21. 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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Find the cheapest flights from Sydney to London

Cheap round-trip flights

Logo
7:40 pm - 5:45 pmSYD-LHR
31h 05m1 stop
Logo
10:40 pm - 6:25 pmLHR-SYD
34h 45m2 stops
$892
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Fri, Aug 15 - Mon, Sep 15
China Southern Logo
9:45 pm - 7:00 pmSYD-LHR
30h 15m1 stop
China Southern Logo
10:10 pm - 7:25 pmLHR-SYD
36h 15m1 stop
$898China Southern
Find Deal
Sat, Sep 6 - Mon, Sep 22
Air China Logo
7:40 pm - 5:45 pmSYD-LHR
31h 05m1 stop
Air China Logo
10:40 pm - 2:50 pmLHR-SYD
31h 10m1 stop
$919Air China
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Fri, Aug 15 - Sun, Aug 31
Air China Logo
7:40 pm - 8:15 pmSYD-LHR
33h 35m2 stops
Air China Logo
10:40 pm - 2:50 pmLHR-SYD
31h 10m1 stop
$929Air China
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Fri, Aug 15 - Sun, Aug 31
China Southern Logo
10:15 am - 7:00 pmSYD-LHR
41h 45m1 stop
China Southern Logo
10:10 pm - 7:25 pmLHR-SYD
36h 15m1 stop
$935China Southern
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Fri, Aug 22 - Sun, Sep 7
Etihad Airways Logo
9:30 pm - 6:45 pmSYD-LHR
30h 15m1 stop
Etihad Airways Logo
9:45 pm - 6:10 amLHR-SYD
23h 25m1 stop
$1,008Etihad Airways
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Sat, Sep 6 - Sat, Sep 27
Etihad Airways Logo
4:40 pm - 7:00 amSYD-LHR
24h 20m1 stop
Etihad Airways Logo
8:55 pm - 6:35 amLHR-SYD
22h 40m1 stop
$1,009Etihad Airways
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Sun, Oct 19 - Sun, Nov 2
China Airlines Logo
10:10 pm - 4:30 pmSYD-LHR
28h 20m1 stop
China Airlines Logo
9:10 pm - 12:15 pmLHR-SYD
29h 05m1 stop
$1,089China Airlines
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Mon, Oct 6 - Sat, Oct 25
Qatar Airways Logo
3:50 pm - 6:25 amSYD-LHR
24h 35m1 stop
Qatar Airways Logo
6:55 pm - 6:50 amLHR-SYD
24h 55m1 stop
$1,099Qatar Airways
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Tue, Oct 7 - Mon, Nov 3
Qatar Airways Logo
3:50 pm - 6:25 amSYD-LHR
25h 35m1 stop
Qatar Airways Logo
8:10 pm - 6:50 amLHR-SYD
23h 40m1 stop
$1,106Qatar Airways
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Thu, Oct 30 - Thu, Nov 13

Turkish Airlines flights from Sydney to London Heathrow Airport

Our best Turkish Airlines deals on Sydney to London Heathrow Airport flight tickets
Turkish Airlines
Oct 16
SYD9:55 pmSydney Kingsford Smith
47h 50m
2 stops
LHR11:45 amLondon Heathrow
Oct 28
LHR8:00 pmLondon Heathrow
36h 50m
2 stops
SYD7:50 pmSydney Kingsford Smith
$983
Find similar
Turkish Airlines
Oct 7
SYD9:55 pmSydney Kingsford Smith
34h 30m
2 stops
LHR10:25 pmLondon Heathrow
Nov 3
LHR6:35 amLondon Heathrow
26h 15m
2 stops
SYD7:50 pmSydney Kingsford Smith
$1,035
Find similar
Turkish Airlines
Oct 10
SYD9:55 pmSydney Kingsford Smith
34h 30m
2 stops
LHR10:25 pmLondon Heathrow
Nov 24
LHR11:30 amLondon Heathrow
45h 20m
2 stops
SYD7:50 pmSydney Kingsford Smith
$1,054
Find similar

China Southern flights from Sydney to London Heathrow Airport

Our best China Southern deals on Sydney to London Heathrow Airport flight tickets
China Southern
Sep 6
SYD9:45 pmSydney Kingsford Smith
30h 15m
1 stop
LHR7:00 pmLondon Heathrow
Sep 22
LHR10:10 pmLondon Heathrow
36h 15m
1 stop
SYD7:25 pmSydney Kingsford Smith
$898
Find similar
China Southern
Aug 22
SYD10:15 amSydney Kingsford Smith
41h 45m
1 stop
LHR7:00 pmLondon Heathrow
Sep 7
LHR10:10 pmLondon Heathrow
36h 15m
1 stop
SYD7:25 pmSydney Kingsford Smith
$935
Find similar
China Southern
Sep 3
SYD9:45 pmSydney Kingsford Smith
30h 15m
1 stop
LHR7:00 pmLondon Heathrow
Sep 17
LHR10:10 pmLondon Heathrow
36h 15m
1 stop
SYD7:25 pmSydney Kingsford Smith
$951
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 2, 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

Fri 8/15

7:40 pm-5:45 pm

1 stop31h 05m

London Heathrow

Mon 9/15

10:40 pm-6:25 pm

2 stops34h 45m

$892

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 9/6

9:45 pm-7:00 pm

1 stop30h 15m

London Heathrow

Mon 9/22

10:10 pm-7:25 pm

1 stop36h 15m

$898

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 8/15

7:40 pm-5:45 pm

1 stop31h 05m

London Heathrow

Sun 8/31

10:40 pm-2:50 pm

1 stop31h 10m

$919

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 8/15

7:40 pm-8:15 pm

2 stops33h 35m

London Heathrow

Sun 8/31

10:40 pm-2:50 pm

1 stop31h 10m

$929

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 8/22

10:15 am-7:00 pm

1 stop41h 45m

London Heathrow

Sun 9/7

10:10 pm-7:25 pm

1 stop36h 15m

$935

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 9/6

9:30 pm-6:45 pm

1 stop30h 15m

London Heathrow

Sat 9/27

9:45 pm-6:10 am

1 stop23h 25m

$1,008

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 10/19

4:40 pm-7:00 am

1 stop24h 20m

London Heathrow

Sun 11/2

8:55 pm-6:35 am

1 stop22h 40m

$1,009

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 10/6

10:10 pm-4:30 pm

1 stop28h 20m

London Heathrow

Sat 10/25

9:10 pm-12:15 pm

1 stop29h 05m

$1,089

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 10/7

3:50 pm-6:25 am

1 stop24h 35m

London Heathrow

Mon 11/3

6:55 pm-6:50 am

1 stop24h 55m

$1,099

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 10/30

3:50 pm-6:25 am

1 stop25h 35m

London Heathrow

Thu 11/13

8:10 pm-6:50 am

1 stop23h 40m

$1,106

Flights are sorted by cheapest round-trip 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?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Sydney, with most prices found around $1,051. If you’re not able to fly to London Heathrow Airport in October, then February is your next best option. Flight prices from Sydney to London Heathrow Airport during February average around $1,072.

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 evening. momondo users have found flights departing from Sydney to London Heathrow Airport in the evening for as low as $1,519. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $1,577.

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 $1,305 when searching weeks out. 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 $1,203 on momondo.

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

There are 1 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.

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

As of August 2025, prices for Sydney to London Heathrow Airport flights are approximately 27% 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 round-trip 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

Best Price Found

$419

Fastest flight time

24h 15m

Direct flights

Tue, Wed, Thu and Sat
The best one-way flight to London Heathrow Airport from Sydney in the past 72 hours is $419. The best round-trip flight deal from Sydney to London Heathrow Airport found on momondo in the last 72 hours is $892.
The fastest flight from Sydney to London Heathrow Airport takes 24h 15m
Direct flights go from Sydney to London Heathrow Airport on Tuesday, Wednesday, Thursday and Saturday. Airlines offering direct flights are: Qantas Airways and British Airways.
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  • How far is Sydney Kingsford Smith to London Heathrow by plane?

    There are 10566.1 mi between Sydney Kingsford Smith and London Heathrow. By plane, this route typically takes 24h 20m.

  • 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 are refreshed on a daily basis.

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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
Air ChinaPriceFrom $831Free CancellationRating
7.3
93 reviews
Search Air China flights
Etihad AirwaysPriceFrom $964Free CancellationRating
7.4
1,230 reviews
Search Etihad Airways flights
Malaysia AirlinesPriceFrom $999Free CancellationRating
7.4
271 reviews
Search Malaysia Airlines flights
Cathay PacificPriceFrom $1,015Free CancellationRating
7.6
951 reviews
Search Cathay Pacific flights
British AirwaysPriceFrom $1,086Free CancellationRating
6.6
7,224 reviews
Search British Airways flights
Singapore AirlinesPriceFrom $1,092Free CancellationRating
8.1
1,338 reviews
Search Singapore Airlines flights
Air IndiaPriceFrom $1,102Free CancellationRating
5.5
2,928 reviews
Search Air India flights
China AirlinesPriceFrom $1,115Free CancellationRating
8.3
755 reviews
Search China Airlines flights
EmiratesPriceFrom $1,186Free CancellationRating
8.1
3,300 reviews
Search Emirates flights
China SouthernPriceFrom $1,254Free CancellationRating
7.6
104 reviews
Search China Southern 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 $1,260 round-trip, up to an average price of $1,799. Our users have rated Qantas Airways at 7.5/10.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Slough
Luton
Dartford
Guildford
Milton Keynes
Stansted
Hayes
Crawley
Croydon
Chelmsford
Salisbury
Ilford
Brentwood
Colchester
Stratford-upon-Avon
Folkestone
Swindon

Why use momondo?

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

It is quick and easy to find Sydney to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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?

Once all potential Sydney to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to London from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London Heathrow Airport trip

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