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Cheap flights from Sydney to London from $315

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 2/3. 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 round-trip flights

Enter your travel dates to find the best prices.
China Eastern Logo
12:00 pm - 6:30 am
SYD
-
LGW
29h 30m
1 stop
China Eastern Logo
7:00 pm - 9:00 am
LGW
-
SYD
29h 00m
1 stop
$871China Eastern
Wed, Mar 11 - Sun, Apr 12
China Eastern Logo
10:00 am - 2:00 pm
SYD
-
LGW
39h 00m
2 stops
China Eastern Logo
7:00 pm - 9:00 am
LGW
-
SYD
29h 00m
1 stop
$872China Eastern
Wed, Mar 11 - Sun, Apr 12
China Eastern Logo
1:30 pm - 5:30 pm
SYD
-
LHR
39h 00m
3 stops
China Eastern Logo
9:00 pm - 1:35 pm
LHR
-
SYD
29h 35m
1 stop
$875China Eastern
Thu, Mar 5 - Thu, Mar 19
China Eastern Logo
10:00 am - 5:30 pm
SYD
-
LHR
42h 30m
2 stops
China Eastern Logo
9:00 pm - 1:35 pm
LHR
-
SYD
29h 35m
1 stop
$876China Eastern
Sun, Feb 8 - Sun, Mar 1
China Eastern Logo
11:00 am - 6:40 pm
SYD
-
LHR
40h 40m
1 stop
China Eastern Logo
9:20 pm - 9:00 am
LHR
-
SYD
26h 40m
1 stop
$879China Eastern
Sun, Jun 7 - Sun, Jun 21
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
China Eastern Logo
9:20 pm - 9:00 am
LHR
-
SYD
26h 40m
1 stop
$881China Eastern
Sun, May 31 - Wed, Jun 24
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
$882China Eastern
Sun, May 3 - Wed, May 27
China Eastern Logo
11:00 am - 6:40 pm
SYD
-
LHR
40h 40m
1 stop
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
$884China Eastern
Wed, May 20 - Mon, Jun 8
China Eastern Logo
8:30 pm - 6:40 pm
SYD
-
LHR
31h 10m
1 stop
China Eastern Logo
9:20 pm - 7:40 am
LHR
-
SYD
49h 20m
2 stops
$886China Eastern
Mon, Jun 1 - Mon, Jun 15
China Eastern Logo
10:05 am - 6:40 pm
SYD
-
LHR
41h 35m
3 stops
China Eastern Logo
9:20 pm - 12:35 pm
LHR
-
SYD
30h 15m
1 stop
$887China Eastern
Tue, May 26 - Fri, Jun 19

China Southern flights from Sydney to London

Our best China Southern deals on Sydney to London flight tickets
China Southern
Jun 5
SYD10:05 amSydney Kingsford Smith
41h 55m
1 stop
LHR7:00 pmLondon Heathrow
Jun 14
LHR10:10 pmLondon Heathrow
25h 15m
1 stop
SYD8:25 amSydney Kingsford Smith
$937
China Southern
Mar 11
SYD10:00 pmSydney Kingsford Smith
31h 35m
1 stop
LHR6:35 pmLondon Heathrow
Apr 12
LHR10:10 pmLondon Heathrow
36h 30m
1 stop
SYD7:40 pmSydney Kingsford Smith
$949

China Eastern flights from Sydney to London

Our best China Eastern deals on Sydney to London flight tickets
China Eastern
Mar 11
SYD12:00 pmSydney Kingsford Smith
29h 30m
1 stop
LGW6:30 amLondon Gatwick
Apr 12
LGW7:00 pmLondon Gatwick
29h 00m
1 stop
SYD9:00 amSydney Kingsford Smith
$871
China Eastern
Mar 11
SYD10:00 amSydney Kingsford Smith
39h 00m
2 stops
LGW2:00 pmLondon Gatwick
Apr 12
LGW7:00 pmLondon Gatwick
29h 00m
1 stop
SYD9:00 amSydney Kingsford Smith
$872
China Eastern
Mar 5
SYD1:30 pmSydney Kingsford Smith
39h 00m
3 stops
LHR5:30 pmLondon Heathrow
Mar 19
LHR9:00 pmLondon Heathrow
29h 35m
1 stop
SYD1:35 pmSydney Kingsford Smith
$875

momondo Fare Finder

 
Customize your flight search to find flights from Sydney to London 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 January 29, 2026.
Use the filters below to find and compare flights from Sydney to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 3/11

12:00 pm-6:30 am

1 stop29h 30m

London Gatwick

Sun 4/12

7:00 pm-9:00 am

1 stop29h 00m

$871

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 3/11

10:00 am-2:00 pm

2 stops39h 00m

London Gatwick

Sun 4/12

7:00 pm-9:00 am

1 stop29h 00m

$872

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 3/5

1:30 pm-5:30 pm

3 stops39h 00m

London Heathrow

Thu 3/19

9:00 pm-1:35 pm

1 stop29h 35m

$875

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 2/8

10:00 am-5:30 pm

2 stops42h 30m

London Heathrow

Sun 3/1

9:00 pm-1:35 pm

1 stop29h 35m

$876

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 6/7

11:00 am-6:40 pm

1 stop40h 40m

London Heathrow

Sun 6/21

9:20 pm-9:00 am

1 stop26h 40m

$879

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 5/31

8:30 pm-6:40 pm

1 stop31h 10m

London Heathrow

Wed 6/24

9:20 pm-9:00 am

1 stop26h 40m

$881

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 5/3

8:30 pm-6:40 pm

1 stop31h 10m

London Heathrow

Wed 5/27

9:20 pm-12:35 pm

1 stop30h 15m

$882

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 5/20

11:00 am-6:40 pm

1 stop40h 40m

London Heathrow

Mon 6/8

9:20 pm-12:35 pm

1 stop30h 15m

$884

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 6/1

8:30 pm-6:40 pm

1 stop31h 10m

London Heathrow

Mon 6/15

9:20 pm-7:40 am

2 stops49h 20m

$886

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 5/26

10:05 am-6:40 pm

3 stops41h 35m

London Heathrow

Fri 6/19

9:20 pm-12:35 pm

1 stop30h 15m

$887

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

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?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Sydney is in February. Flight prices, which tend to average around $1,049, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Sydney averaging around $1,056.

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

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

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

You are more likely to see cheaper flights to London from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Sydney for as low as $1,211 on momondo.

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

There is only 1 cabin class available to choose from on Sydney Kingsford Smith to London 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 flights?

You could potentially save up to 51% on your flight if you consider stops on a Sydney to London flight.

How have Sydney to London flight prices changed over time?

As of January 2026, prices for Sydney to London flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to London

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

Cheap Sydney to London (SYD to LON) flight deals and tips

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

Fastest flight time

25h 00m

Direct flights

Every day

Airports in London

6 airports
The fastest flight from Sydney to London takes 25h 00m
Direct flights go from Sydney to London every day.
There are 6 airports in London. From Sydney there are direct flights to London Heathrow (LHR).
Search flight deals

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

    The distance between Sydney Kingsford Smith and London is about 10552.8 mi. 25h 00m is a normal flight duration for this route.

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

    Prices for flights from Sydney Kingsford Smith Airport to London are refreshed on a daily basis.

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

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

    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.

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

    The required travel and health documents for your London 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. 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?

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

Best airlines flying from Sydney to London

Compare and see reviews for airlines that fly from Sydney to London with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $956Free CancellationRating
7.6
1,148 reviews
Search Cathay Pacific flights
Etihad AirwaysPriceFrom $1,005Free CancellationRating
7.3
1,375 reviews
Search Etihad Airways flights
Singapore AirlinesPriceFrom $1,092Free CancellationRating
8.2
1,440 reviews
Search Singapore Airlines flights
Air IndiaPriceFrom $1,102Free CancellationRating
5.5
2,978 reviews
Search Air India flights
Qatar AirwaysPriceFrom $1,102Free CancellationRating
7.4
3,727 reviews
Search Qatar Airways flights
British AirwaysPriceFrom $1,147Free CancellationRating
6.7
7,705 reviews
Search British Airways flights
EmiratesPriceFrom $1,186Free CancellationRating
8.1
3,490 reviews
Search Emirates flights
Air ChinaPriceFrom $1,216Free CancellationRating
7.2
138 reviews
Search Air China flights
China SouthernPriceFrom $1,316Free CancellationRating
7.3
136 reviews
Search China Southern flights
Qantas AirwaysPriceFrom $1,391Free CancellationRating
7.5
981 reviews
Search Qantas Airways flights

  • Qantas Airways Flights From Sydney to London

    Qantas Airways flies from Sydney to London around 7 times per week, with 981 momondo users rating the airline 7.5/10. The cheapest Qantas Airways deal from Sydney to London in the last 72 hours was $1,391 (round-trip), much lower than the average airfare cost of $1,800 for Qantas Airways flights on this route.

  • British Airways Flights From Sydney to London

    The best British Airways deal for Sydney to London flight tickets found on momondo in the last 72 hours was $1,147, round-trip. It should be noted that an average British Airways flight deal for this route in this time was higher, at $1,526 round-trip. British Airways operates 3 flights out of Sydney into London in an average week, so prices vary by time and availability. 7,705 British Airways reviews by users on momondo have scored the airline at 6.7/10.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Crawley
Wembley
Dartford
Hayes
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Croydon
Richmond

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 allows you to filter the results for Sydney to London flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sydney to London.

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 trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport