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Cheap flights from Sydney to London from $512

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 2/16. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
10:15 am - 5:50 pm
SYD
-
LHR
40h 35m1 stop
Vietnam Airlines Logo
6:55 pm - 12:15 pm
LHR
-
SYD
32h 20m1 stop
$1,097Vietnam Airlines
Mon, May 4 - Mon, May 25
Turkish Airlines Logo
9:10 pm - 4:20 pm
SYD
-
LGW
28h 10m2 stops
Turkish Airlines Logo
7:00 am - 7:15 pm
LGW
-
SYD
27h 15m2 stops
$1,097Turkish Airlines
Sun, Apr 19 - Tue, May 12
Multiple Airlines Logo
3:55 pm - 9:20 am
SYD
-
LGW
28h 25m2 stops
Multiple Airlines Logo
7:00 am - 7:15 pm
LGW
-
SYD
27h 15m2 stops
$1,098Multiple Airlines
Tue, Mar 24 - Thu, Jun 4
Etihad Airways Logo
9:45 pm - 6:10 pm
SYD
-
LHR
31h 25m1 stop
Etihad Airways Logo
8:50 am - 6:35 am
LHR
-
SYD
34h 45m1 stop
$1,101Etihad Airways
Sat, Jan 31 - Sat, Feb 7
Air China Logo
8:40 pm - 3:55 pm
SYD
-
LHR
30h 15m1 stop
Air China Logo
5:40 pm - 3:30 pm
LHR
-
SYD
34h 50m1 stop
$1,104Air China
Wed, Feb 11 - Mon, Feb 16
Etihad Airways Logo
4:35 pm - 6:40 am
SYD
-
LHR
25h 05m1 stop
Etihad Airways Logo
8:50 am - 5:55 pm
LHR
-
SYD
22h 05m1 stop
$1,108Etihad Airways
Wed, Feb 11 - Sun, Feb 22
China Eastern Logo
9:30 pm - 6:30 am
SYD
-
LGW
44h 00m1 stop
China Eastern Logo
6:00 pm - 7:40 am
LGW
-
SYD
28h 40m2 stops
$1,117China Eastern
Wed, Feb 18 - Tue, Jul 28
China Eastern Logo
9:30 pm - 6:30 am
SYD
-
LGW
44h 00m1 stop
China Eastern Logo
6:00 pm - 7:40 am
LGW
-
SYD
28h 40m2 stops
$1,118China Eastern
Wed, Feb 18 - Tue, Jul 28
Qatar Airways Logo
3:50 pm - 5:55 am
SYD
-
LGW
25h 05m1 stop
Qatar Airways Logo
2:05 pm - 6:50 am
LGW
-
SYD
29h 45m1 stop
$1,131Qatar Airways
Mon, Mar 2 - Sun, Mar 15
Qatar Airways Logo
3:50 pm - 5:55 am
SYD
-
LGW
25h 05m1 stop
Qatar Airways Logo
2:05 pm - 6:50 am
LGW
-
SYD
29h 45m1 stop
$1,135Qatar Airways
Sun, Feb 15 - Sun, Mar 8

Vietnam Airlines flights from Sydney to London

Our best Vietnam Airlines deals on Sydney to London flight tickets
Vietnam Airlines
May 4
SYD10:15 amSydney Kingsford Smith
40h 35m
1 stop
LHR5:50 pmLondon Heathrow
May 26
LHR7:50 pmLondon Heathrow
27h 25m
1 stop
SYD8:15 amSydney Kingsford Smith
$1,097
Find similar
Vietnam Airlines
Apr 22
SYD10:15 amSydney Kingsford Smith
39h 40m
1 stop
LHR4:55 pmLondon Heathrow
Apr 28
LHR7:50 pmLondon Heathrow
27h 25m
1 stop
SYD8:15 amSydney Kingsford Smith
$1,109
Find similar
Vietnam Airlines
May 9
SYD2:15 pmSydney Kingsford Smith
36h 35m
1 stop
LHR5:50 pmLondon Heathrow
May 28
LHR7:10 pmLondon Heathrow
28h 05m
1 stop
SYD8:15 amSydney Kingsford Smith
$1,118
Find similar

Etihad Airways flights from Sydney to London

Our best Etihad Airways deals on Sydney to London flight tickets
Etihad Airways
Jan 31
SYD9:45 pmSydney Kingsford Smith
31h 25m
1 stop
LHR6:10 pmLondon Heathrow
Feb 7
LHR8:50 amLondon Heathrow
34h 45m
1 stop
SYD6:35 amSydney Kingsford Smith
$1,101
Find similar
Etihad Airways
Feb 11
SYD4:35 pmSydney Kingsford Smith
25h 05m
1 stop
LHR6:40 amLondon Heathrow
Feb 22
LHR8:50 amLondon Heathrow
22h 05m
1 stop
SYD5:55 pmSydney Kingsford Smith
$1,108
Find similar
Etihad Airways
Feb 13
SYD4:35 pmSydney Kingsford Smith
25h 05m
1 stop
LHR6:40 amLondon Heathrow
Feb 22
LHR8:55 pmLondon Heathrow
22h 40m
1 stop
SYD6:35 amSydney Kingsford Smith
$1,110
Find similar

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 December 18, 2025.
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 - LHR

SYDLHR

Sydney Kingsford Smith

Mon 5/4

10:15 am-5:50 pm

1 stop40h 35m

London Heathrow

Mon 5/25

6:55 pm-12:15 pm

1 stop32h 20m

$1,097

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 4/19

9:10 pm-4:20 pm

2 stops28h 10m

London Gatwick

Tue 5/12

7:00 am-7:15 pm

2 stops27h 15m

$1,097

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 3/24

3:55 pm-9:20 am

2 stops28h 25m

London Gatwick

Thu 6/4

7:00 am-7:15 pm

2 stops27h 15m

$1,098

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 1/31

9:45 pm-6:10 pm

1 stop31h 25m

London Heathrow

Sat 2/7

8:50 am-6:35 am

1 stop34h 45m

$1,101

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 2/11

8:40 pm-3:55 pm

1 stop30h 15m

London Heathrow

Mon 2/16

5:40 pm-3:30 pm

1 stop34h 50m

$1,104

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 2/11

4:35 pm-6:40 am

1 stop25h 05m

London Heathrow

Sun 2/22

8:50 am-5:55 pm

1 stop22h 05m

$1,108

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 2/18

9:30 pm-6:30 am

1 stop44h 00m

London Gatwick

Tue 7/28

6:00 pm-7:40 am

2 stops28h 40m

$1,117

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 2/18

9:30 pm-6:30 am

1 stop44h 00m

London Gatwick

Tue 7/28

6:00 pm-7:40 am

2 stops28h 40m

$1,118

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 3/2

3:50 pm-5:55 am

1 stop25h 05m

London Gatwick

Sun 3/15

2:05 pm-6:50 am

1 stop29h 45m

$1,131

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 2/15

3:50 pm-5:55 am

1 stop25h 05m

London Gatwick

Sun 3/8

2:05 pm-6:50 am

1 stop29h 45m

$1,135

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 $1,052, 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 $1,058.

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

Flying to London from Sydney in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,266 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $1,357. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,292 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 $1,210 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.

How have Sydney to London flight prices changed over time?

As of December 2025, prices for Sydney to London flights are approximately 6% more expensive 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

24h 25m

Direct flights

Every day

Airports in London

6 airports
The fastest flight from Sydney to London takes 24h 25m
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. 24h 25m 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
1,095 reviews
Search Cathay Pacific flights
Etihad AirwaysPriceFrom $1,005Free CancellationRating
7.4
1,332 reviews
Search Etihad Airways flights
Singapore AirlinesPriceFrom $1,092Free CancellationRating
8.1
1,413 reviews
Search Singapore Airlines flights
Air IndiaPriceFrom $1,102Free CancellationRating
5.5
2,952 reviews
Search Air India flights
Qatar AirwaysPriceFrom $1,102Free CancellationRating
7.4
3,686 reviews
Search Qatar Airways flights
British AirwaysPriceFrom $1,147Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
EmiratesPriceFrom $1,186Free CancellationRating
8.1
3,440 reviews
Search Emirates flights
Air ChinaPriceFrom $1,216Free CancellationRating
7.1
129 reviews
Search Air China flights
Qantas AirwaysPriceFrom $1,260Free CancellationRating
7.5
947 reviews
Search Qantas Airways flights
China SouthernPriceFrom $1,316Free CancellationRating
7.5
122 reviews
Search China Southern flights

  • Qantas Airways Flights From Sydney to London

    Qantas Airways flies from Sydney to London around 7 times per week, with 947 momondo users rating the airline 7.5/10. The cheapest Qantas Airways deal from Sydney to London in the last 72 hours was $1,260 (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 $1,519 round-trip. British Airways operates 7 flights out of Sydney into London in an average week, so prices vary by time and availability. 7,585 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
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
Richmond
Uxbridge
Stansted

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

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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