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Cheap flights from Sydney to London from £283

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 20/10. 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 (SYD-LHR)

Cheap return flights

China Southern Logo
22:00 - 18:15SYD-LHR
31h 15m1 stop
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
£588China Southern
Find Deal
Mon, 3 Nov - Mon, 24 Nov
China Southern Logo
11:25 - 18:15SYD-LHR
41h 50m1 stop
China Southern Logo
22:00 - 09:25LHR-SYD
24h 25m1 stop
£589China Southern
Find Deal
Tue, 11 Nov - Fri, 28 Nov
China Southern Logo
22:00 - 18:15SYD-LHR
31h 15m1 stop
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
£591China Southern
Find Deal
Tue, 11 Nov - Fri, 28 Nov
China Southern Logo
10:15 - 19:00SYD-LHR
41h 45m1 stop
China Southern Logo
22:10 - 19:25LHR-SYD
36h 15m1 stop
£598China Southern
Find Deal
Wed, 3 Sep - Sun, 7 Sep
China Eastern Logo
12:00 - 18:40SYD-LHR
40h 40m1 stop
China Eastern Logo
21:00 - 13:35LHR-SYD
29h 35m1 stop
£634China Eastern
Find Deal
Sat, 18 Oct - Mon, 27 Oct
China Eastern Logo
12:00 - 18:40SYD-LHR
40h 40m1 stop
China Eastern Logo
21:00 - 13:35LHR-SYD
29h 35m1 stop
£637China Eastern
Find Deal
Sat, 18 Oct - Mon, 27 Oct
Air China Logo
19:40 - 20:30SYD-LHR
33h 50m1 stop
Air China Logo
22:40 - 14:50LHR-SYD
31h 10m1 stop
£659Air China
Find Deal
Sat, 6 Sep - Thu, 18 Sep
Air China Logo
19:40 - 20:30SYD-LHR
33h 50m1 stop
Air China Logo
22:40 - 14:50LHR-SYD
31h 10m1 stop
£667Air China
Find Deal
Thu, 4 Sep - Tue, 23 Sep
Logo
21:00 - 19:30SYD-LHR
32h 30m2 stops
Logo
20:25 - 15:50LHR-SYD
33h 25m1 stop
£676
Find Deal
Thu, 16 Oct - Tue, 21 Oct
Logo
19:40 - 20:30SYD-LHR
33h 50m1 stop
Logo
22:40 - 18:55LHR-SYD
35h 15m2 stops
£678
Find Deal
Thu, 4 Sep - Wed, 17 Sep

China Southern flights from Sydney to London Heathrow Airport

Our best China Southern deals on Sydney to London Heathrow Airport flight tickets
China Southern
3 Nov
SYD22:00Sydney Kingsford Smith
31h 15m
1 stop
LHR18:15London Heathrow
24 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
£588
Find similar
China Southern
11 Nov
SYD11:25Sydney Kingsford Smith
41h 50m
1 stop
LHR18:15London Heathrow
28 Nov
LHR22:00London Heathrow
24h 25m
1 stop
SYD09:25Sydney Kingsford Smith
£589
Find similar
China Southern
11 Nov
SYD22:00Sydney Kingsford Smith
31h 15m
1 stop
LHR18:15London Heathrow
28 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
£591
Find similar

Air China flights from Sydney to London Heathrow Airport

Our best Air China deals on Sydney to London Heathrow Airport flight tickets
Air China
6 Sept
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London Heathrow
18 Sept
LHR22:40London Heathrow
31h 10m
1 stop
SYD14:50Sydney Kingsford Smith
£659
Find similar
Air China
4 Sept
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London Heathrow
23 Sept
LHR22:40London Heathrow
31h 10m
1 stop
SYD14:50Sydney Kingsford Smith
£667
Find similar
Air China
15 Aug
SYD19:40Sydney Kingsford Smith
33h 35m
2 stops
LHR20:15London Heathrow
31 Aug
LHR22:40London Heathrow
31h 10m
1 stop
SYD14:50Sydney Kingsford Smith
£671
Find similar

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 15 August 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 3/11

22:00-18:15

1 stop31h 15m

London Heathrow

Mon 24/11

22:00-20:20

1 stop35h 20m

£588

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 11/11

11:25-18:15

1 stop41h 50m

London Heathrow

Fri 28/11

22:00-09:25

1 stop24h 25m

£589

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 11/11

22:00-18:15

1 stop31h 15m

London Heathrow

Fri 28/11

22:00-20:20

1 stop35h 20m

£591

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 3/9

10:15-19:00

1 stop41h 45m

London Heathrow

Sun 7/9

22:10-19:25

1 stop36h 15m

£598

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 18/10

12:00-18:40

1 stop40h 40m

London Heathrow

Mon 27/10

21:00-13:35

1 stop29h 35m

£634

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 18/10

12:00-18:40

1 stop40h 40m

London Heathrow

Mon 27/10

21:00-13:35

1 stop29h 35m

£637

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 6/9

19:40-20:30

1 stop33h 50m

London Heathrow

Thu 18/9

22:40-14:50

1 stop31h 10m

£659

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 4/9

19:40-20:30

1 stop33h 50m

London Heathrow

Tue 23/9

22:40-14:50

1 stop31h 10m

£667

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 16/10

21:00-19:30

2 stops32h 30m

London Heathrow

Tue 21/10

20:25-15:50

1 stop33h 25m

£676

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 4/9

19:40-20:30

1 stop33h 50m

London Heathrow

Wed 17/9

22:40-18:55

2 stops35h 15m

£678

Flights are sorted by cheapest return 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?

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 £788.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as £1,081. 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 £1,373.

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 morning. momondo users have found flights departing from Sydney to London Heathrow Airport in the morning for as low as £939. 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 £1,380 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 £960 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 £878 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 21% 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 August 2025, prices for Sydney to London Heathrow Airport flights are approximately 28% 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 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

Best price found

£283

Fastest flight time

29h 10m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Sydney in the past 72 hours is £283. The best return flight deal from Sydney to London Heathrow Airport found on momondo in the last 72 hours is £588.
The fastest flight from Sydney to London Heathrow Airport takes 29h 10m
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 30h 15m 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 £598Free CancellationRating
7.6
106 reviews
Search China Southern flights
Air ChinaPriceFrom £658Free CancellationRating
7.3
94 reviews
Search Air China flights
China EasternPriceFrom £672Free CancellationRating
7.2
160 reviews
Search China Eastern flights
Air IndiaPriceFrom £681Free CancellationRating
5.5
2,930 reviews
Search Air India flights
Etihad AirwaysPriceFrom £715Free CancellationRating
7.4
1,232 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom £723Free CancellationRating
7.3
3,939 reviews
Search Turkish Airlines flights
Cathay PacificPriceFrom £737Free CancellationRating
7.6
968 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom £746Free CancellationRating
7.4
3,608 reviews
Search Qatar Airways flights
Malaysia AirlinesPriceFrom £771Free CancellationRating
7.4
273 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom £781Free CancellationRating
8.1
1,346 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 £1,292 round-trip, up to an average price of £1,829. Our users have rated Qantas Airways at 7.5/10.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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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.

An easier way to manage your London Heathrow Airport trip

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