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Cheap flights from Sydney to London from £309

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 23/1. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:00 - 17:35
SYD
-
LHR
31h 35m
2 stops
Multiple Airlines Logo
22:00 - 22:55
LHR
-
SYD
38h 55m
3 stops
£729Multiple Airlines
Thu, 19 Mar - Fri, 3 Apr
China Eastern Logo
12:00 - 17:30
SYD
-
LHR
40h 30m
1 stop
China Eastern Logo
21:20 - 09:00
LHR
-
SYD
26h 40m
1 stop
£734China Eastern
Thu, 26 Mar - Sun, 5 Apr
Multiple Airlines Logo
21:00 - 19:30
SYD
-
LHR
31h 30m
2 stops
Multiple Airlines Logo
21:00 - 12:35
LHR
-
SYD
30h 35m
2 stops
£743Multiple Airlines
Thu, 28 May - Thu, 11 Jun
Turkish Airlines Logo
21:15 - 14:10
SYD
-
LHR
27h 55m
2 stops
Turkish Airlines Logo
11:30 - 19:20
LHR
-
SYD
44h 50m
2 stops
£743Turkish Airlines
Wed, 4 Feb - Wed, 11 Feb
China Southern Logo
22:00 - 18:35
SYD
-
LHR
31h 35m
1 stop
China Southern Logo
22:00 - 20:20
LHR
-
SYD
35h 20m
1 stop
£745China Southern
Wed, 18 Mar - Sun, 22 Mar
Multiple Airlines Logo
15:15 - 18:35
SYD
-
LHR
38h 20m
1 stop
Multiple Airlines Logo
21:25 - 07:55
LHR
-
SYD
23h 30m
1 stop
£746Multiple Airlines
Tue, 17 Feb - Tue, 24 Feb
Multiple Airlines Logo
21:00 - 19:30
SYD
-
LHR
31h 30m
1 stop
Multiple Airlines Logo
22:10 - 19:40
LHR
-
SYD
36h 30m
1 stop
£747Multiple Airlines
Tue, 21 Apr - Tue, 12 May
Multiple Airlines Logo
21:00 - 19:30
SYD
-
LHR
31h 30m
2 stops
Multiple Airlines Logo
21:00 - 12:35
LHR
-
SYD
30h 35m
2 stops
£748Multiple Airlines
Thu, 28 May - Thu, 11 Jun
China Eastern Logo
11:00 - 18:40
SYD
-
LHR
40h 40m
1 stop
China Eastern Logo
21:20 - 08:00
LHR
-
SYD
49h 40m
3 stops
£749China Eastern
Fri, 5 Jun - Thu, 25 Jun
Multiple Airlines Logo
21:00 - 19:30
SYD
-
LHR
32h 30m
2 stops
Multiple Airlines Logo
21:00 - 12:35
LHR
-
SYD
30h 35m
2 stops
£751Multiple Airlines
Thu, 2 Apr - Wed, 15 Apr

China Southern flights from Sydney to London Heathrow Airport

Our best China Southern deals on Sydney to London Heathrow Airport flight tickets
China Southern
18 Mar
SYD22:00Sydney Kingsford Smith
31h 35m
1 stop
LHR18:35London Heathrow
22 Mar
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
£745
China Southern
2 Apr
SYD15:15Sydney Kingsford Smith
37h 45m
1 stop
LHR19:00London Heathrow
13 Apr
LHR22:10London Heathrow
25h 15m
1 stop
SYD08:25Sydney Kingsford Smith
£764
China Southern
24 Mar
SYD11:25Sydney Kingsford Smith
42h 10m
1 stop
LHR18:35London Heathrow
4 Jun
LHR22:10London Heathrow
36h 30m
1 stop
SYD19:40Sydney Kingsford Smith
£764

China Eastern flights from Sydney to London Heathrow Airport

Our best China Eastern deals on Sydney to London Heathrow Airport flight tickets
China Eastern
5 Jun
SYD11:00Sydney Kingsford Smith
40h 40m
1 stop
LHR18:40London Heathrow
25 Jun
LHR21:20London Heathrow
49h 40m
3 stops
SYD08:00Sydney Kingsford Smith
£749
China Eastern
2 Feb
SYD13:30Sydney Kingsford Smith
39h 00m
2 stops
LHR17:30London Heathrow
16 Feb
LHR21:00London Heathrow
51h 00m
3 stops
SYD11:00Sydney Kingsford Smith
£755
China Eastern
15 Feb
SYD10:00Sydney Kingsford Smith
42h 30m
3 stops
LHR17:30London Heathrow
1 Mar
LHR21:00London Heathrow
29h 35m
1 stop
SYD13:35Sydney Kingsford Smith
£761

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 19 January 2026.
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

Thu 19/3

21:00-17:35

2 stops31h 35m

London Heathrow

Fri 3/4

22:00-22:55

3 stops38h 55m

£729

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 26/3

12:00-17:30

1 stop40h 30m

London Heathrow

Sun 5/4

21:20-09:00

1 stop26h 40m

£734

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 28/5

21:00-19:30

2 stops31h 30m

London Heathrow

Thu 11/6

21:00-12:35

2 stops30h 35m

£743

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 4/2

21:15-14:10

2 stops27h 55m

London Heathrow

Wed 11/2

11:30-19:20

2 stops44h 50m

£743

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 18/3

22:00-18:35

1 stop31h 35m

London Heathrow

Sun 22/3

22:00-20:20

1 stop35h 20m

£745

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 17/2

15:15-18:35

1 stop38h 20m

London Heathrow

Tue 24/2

21:25-07:55

1 stop23h 30m

£746

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 21/4

21:00-19:30

1 stop31h 30m

London Heathrow

Tue 12/5

22:10-19:40

1 stop36h 30m

£747

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 28/5

21:00-19:30

2 stops31h 30m

London Heathrow

Thu 11/6

21:00-12:35

2 stops30h 35m

£748

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 5/6

11:00-18:40

1 stop40h 40m

London Heathrow

Thu 25/6

21:20-08:00

3 stops49h 40m

£749

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 2/4

21:00-19:30

2 stops32h 30m

London Heathrow

Wed 15/4

21:00-12:35

2 stops30h 35m

£751

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

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 £784. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Sydney averaging around £807.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £1,045. 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 £1,463.

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 at midday. momondo users have found flights departing from Sydney to London Heathrow Airport at midday for as low as £1,093. 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 £1,404 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 £963 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 £903 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 43% 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 January 2026, prices for Sydney to London Heathrow Airport flights are approximately 12% 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 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 00m

Direct flights

Every day
The fastest flight from Sydney to London Heathrow Airport takes 24h 00m
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 24h 00m 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 £594Free CancellationRating
7.3
133 reviews
Search China Southern flights
China EasternPriceFrom £631Free CancellationRating
7.2
190 reviews
Search China Eastern flights
Air ChinaPriceFrom £667Free CancellationRating
7.2
138 reviews
Search Air China flights
Air IndiaPriceFrom £690Free CancellationRating
5.5
2,975 reviews
Search Air India flights
Etihad AirwaysPriceFrom £718Free CancellationRating
7.3
1,373 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom £742Free CancellationRating
7.3
4,193 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom £756Free CancellationRating
7.4
3,720 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom £771Free CancellationRating
7.6
1,139 reviews
Search Cathay Pacific flights
Malaysia AirlinesPriceFrom £781Free CancellationRating
7.3
290 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom £791Free CancellationRating
8.1
1,431 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 £944 round-trip, up to an average price of £1,170. Our users have rated Qantas Airways at 7.5/10.

Travelling to a place near London?

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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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