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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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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
9:15 pm - 1:30 pm
SYD
-
LHR
27h 15m2 stops
Turkish Airlines Logo
10:35 pm - 7:20 pm
LHR
-
SYD
33h 45m2 stops
$1,099Turkish Airlines
Sun, Feb 1 - Mon, Feb 9
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
Asiana Airlines Logo
9:30 am - 6:50 pm
SYD
-
LHR
42h 20m1 stop
Asiana Airlines Logo
8:40 pm - 7:30 am
LHR
-
SYD
25h 50m1 stop
$1,103Asiana Airlines
Sun, May 31 - Sun, Jun 28
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
Multiple Airlines Logo
12:00 pm - 6:40 pm
SYD
-
LHR
39h 40m2 stops
Multiple Airlines Logo
7:15 pm - 8:25 am
LHR
-
SYD
28h 10m2 stops
$1,106Multiple Airlines
Wed, May 20 - Sun, May 31
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
Vietnam Airlines Logo
10:15 am - 4:55 pm
SYD
-
LHR
39h 40m1 stop
Vietnam Airlines Logo
7:50 pm - 8:15 am
LHR
-
SYD
27h 25m1 stop
$1,109Vietnam Airlines
Wed, Apr 22 - Tue, Apr 28
Etihad Airways Logo
4:35 pm - 6:40 am
SYD
-
LHR
25h 05m1 stop
Etihad Airways Logo
8:55 pm - 6:35 am
LHR
-
SYD
22h 40m1 stop
$1,110Etihad Airways
Fri, Feb 13 - Sun, Feb 22
Multiple Airlines Logo
2:45 pm - 9:35 am
SYD
-
LHR
27h 50m2 stops
Multiple Airlines Logo
6:30 pm - 7:15 pm
LHR
-
SYD
39h 45m2 stops
$1,114Multiple Airlines
Mon, May 18 - Mon, May 25

Vietnam Airlines flights from Sydney to London Heathrow Airport

Our best Vietnam Airlines deals on Sydney to London Heathrow Airport 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

Turkish Airlines flights from Sydney to London Heathrow Airport

Our best Turkish Airlines deals on Sydney to London Heathrow Airport flight tickets
Turkish Airlines
Feb 1
SYD9:15 pmSydney Kingsford Smith
27h 15m
2 stops
LHR1:30 pmLondon Heathrow
Feb 9
LHR10:35 pmLondon Heathrow
33h 45m
2 stops
SYD7:20 pmSydney Kingsford Smith
$1,099
Find similar
Turkish Airlines
May 1
SYD9:10 pmSydney Kingsford Smith
27h 10m
2 stops
LHR3:20 pmLondon Heathrow
Jun 23
LHR10:35 pmLondon Heathrow
35h 40m
2 stops
SYD7:15 pmSydney Kingsford Smith
$1,119
Find similar
Turkish Airlines
Mar 8
SYD9:15 pmSydney Kingsford Smith
27h 15m
2 stops
LHR1:30 pmLondon Heathrow
Mar 11
LHR10:35 pmLondon Heathrow
33h 45m
2 stops
SYD7:20 pmSydney Kingsford Smith
$1,120
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 December 18, 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

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 - LHR

SYDLHR

Sydney Kingsford Smith

Sun 2/1

9:15 pm-1:30 pm

2 stops27h 15m

London Heathrow

Mon 2/9

10:35 pm-7:20 pm

2 stops33h 45m

$1,099

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

Sun 5/31

9:30 am-6:50 pm

1 stop42h 20m

London Heathrow

Sun 6/28

8:40 pm-7:30 am

1 stop25h 50m

$1,103

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 5/20

12:00 pm-6:40 pm

2 stops39h 40m

London Heathrow

Sun 5/31

7:15 pm-8:25 am

2 stops28h 10m

$1,106

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 - LHR

SYDLHR

Sydney Kingsford Smith

Wed 4/22

10:15 am-4:55 pm

1 stop39h 40m

London Heathrow

Tue 4/28

7:50 pm-8:15 am

1 stop27h 25m

$1,109

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 2/13

4:35 pm-6:40 am

1 stop25h 05m

London Heathrow

Sun 2/22

8:55 pm-6:35 am

1 stop22h 40m

$1,110

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 5/18

2:45 pm-9:35 am

2 stops27h 50m

London Heathrow

Mon 5/25

6:30 pm-7:15 pm

2 stops39h 45m

$1,114

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 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 $1,049. 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 $1,080.

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 $1,292 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 $1,210 on momondo.

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

There is only 1 cabin class 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 December 2025, prices for Sydney to London Heathrow Airport flights are approximately 6% more expensive 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

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?

    There are 10566.1 mi between Sydney Kingsford Smith and London Heathrow. By plane, this route typically takes 24h 25m.

  • 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
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 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 $1,800. Our users have rated Qantas Airways at 7.5/10.

  • British Airways Flights From Sydney to London Heathrow Airport

    British Airways (6.7/10 from 7,585 reviews) operates around 7 flights from Sydney to London Heathrow Airport in any given week. The average British Airways airfare for this route is around $1,519, with deals from around $1,147 rare but found on momondo. Referenced prices are for round-trip Sydney to London Heathrow Airport flight searches in the last 72 hours.

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
Stratford-upon-Avon
Crawley
Brentwood
Salisbury
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
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 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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