Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Sydney to London from £323

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 25/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Sydney to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:15 - 14:10SYD-LHR
27h 55m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£745Multiple Airlines
Find Deal
ons., 18 feb. - tor., 5 mar.
Multiple Airlines Logo
21:15 - 14:55SYD-LHR
28h 40m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£745Multiple Airlines
Find Deal
man., 2 mar. - tir., 17 mar.
China Eastern Logo
21:30 - 17:30SYD-LHR
31h 00m1 stop
China Eastern Logo
21:00 - 13:35LHR-SYD
29h 35m1 stop
£748China Eastern
Find Deal
man., 19 jan. - tir., 3 feb.
Multiple Airlines Logo
21:15 - 14:10SYD-LHR
27h 55m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£750Multiple Airlines
Find Deal
ons., 18 feb. - tor., 19 mar.
Multiple Airlines Logo
14:25 - 09:55SYD-LHR
30h 30m2 stops
Multiple Airlines Logo
08:45 - 19:15LHR-SYD
23h 30m1 stop
£751Multiple Airlines
Find Deal
man., 16 feb. - tor., 12 mar.
Air China Logo
20:40 - 15:55SYD-LHR
30h 15m1 stop
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£751Air China
Find Deal
søn., 1 mar. - tor., 19 mar.
Multiple Airlines Logo
14:25 - 09:55SYD-LHR
30h 30m2 stops
Multiple Airlines Logo
08:50 - 17:55LHR-SYD
22h 05m1 stop
£752Multiple Airlines
Find Deal
man., 16 feb. - tor., 19 mar.
Multiple Airlines Logo
21:15 - 13:30SYD-LHR
27h 15m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£753Multiple Airlines
Find Deal
søn., 15 feb. - søn., 8 mar.
Multiple Airlines Logo
21:15 - 14:10SYD-LHR
27h 55m2 stops
Multiple Airlines Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
£754Multiple Airlines
Find Deal
fre., 20 feb. - tir., 3 mar.
Etihad Airways Logo
21:45 - 14:30SYD-LHR
27h 45m1 stop
Etihad Airways Logo
20:55 - 17:55LHR-SYD
34h 00m1 stop
£754Etihad Airways
Find Deal
fre., 27 feb. - tor., 12 mar.

China Southern flights from Sydney to London Heathrow Airport

Our best China Southern deals on Sydney to London Heathrow Airport flight tickets
China Southern
17 Feb
SYD11:25Sydney Kingsford Smith
42h 10m
1 stop
LHR18:35London Heathrow
6 Mar
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
£770
Find similar
China Southern
9 May
SYD21:45Sydney Kingsford Smith
29h 20m
2 stops
LHR18:05London Heathrow
15 May
LHR22:10London Heathrow
36h 30m
1 stop
SYD19:40Sydney Kingsford Smith
£772
Find similar
China Southern
15 Feb
SYD08:10Sydney Kingsford Smith
45h 25m
1 stop
LHR18:35London Heathrow
4 Mar
LHR17:15London Heathrow
51h 15m
2 stops
SYD07:30Sydney Kingsford Smith
£779
Find similar

Etihad Airways flights from Sydney to London Heathrow Airport

Our best Etihad Airways deals on Sydney to London Heathrow Airport flight tickets
Etihad Airways
23 Mar
SYD21:45Sydney Kingsford Smith
31h 25m
1 stop
LHR18:10London Heathrow
16 Apr
LHR09:30London Heathrow
22h 30m
1 stop
SYD17:00Sydney Kingsford Smith
£770
Find similar
Etihad Airways
30 Jan
SYD16:35Sydney Kingsford Smith
32h 55m
1 stop
LHR14:30London Heathrow
20 Feb
LHR19:20London Heathrow
24h 15m
1 stop
SYD06:35Sydney Kingsford Smith
£773
Find similar
Etihad Airways
24 Feb
SYD21:45Sydney Kingsford Smith
27h 45m
1 stop
LHR14:30London Heathrow
28 Feb
LHR13:55London Heathrow
41h 00m
1 stop
SYD17:55Sydney Kingsford Smith
£773
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 27 november 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

ons. 18/2

21:15-14:10

2 stops27h 55m

London Heathrow

tor. 5/3

20:25-15:30

1 stop32h 05m

£745

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

man. 2/3

21:15-14:55

2 stops28h 40m

London Heathrow

tir. 17/3

20:25-15:30

1 stop32h 05m

£745

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

man. 19/1

21:30-17:30

1 stop31h 00m

London Heathrow

tir. 3/2

21:00-13:35

1 stop29h 35m

£748

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

ons. 18/2

21:15-14:10

2 stops27h 55m

London Heathrow

tor. 19/3

20:25-15:30

1 stop32h 05m

£750

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

man. 16/2

14:25-09:55

2 stops30h 30m

London Heathrow

tor. 12/3

08:45-19:15

1 stop23h 30m

£751

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

søn. 1/3

20:40-15:55

1 stop30h 15m

London Heathrow

tor. 19/3

20:25-15:30

1 stop32h 05m

£751

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

man. 16/2

14:25-09:55

2 stops30h 30m

London Heathrow

tor. 19/3

08:50-17:55

1 stop22h 05m

£752

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

søn. 15/2

21:15-13:30

2 stops27h 15m

London Heathrow

søn. 8/3

20:25-15:30

1 stop32h 05m

£753

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

fre. 20/2

21:15-14:10

2 stops27h 55m

London Heathrow

tir. 3/3

20:25-15:30

1 stop32h 05m

£754

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

fre. 27/2

21:45-14:30

1 stop27h 45m

London Heathrow

tor. 12/3

20:55-17:55

1 stop34h 00m

£754

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £793. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Sydney averaging around £830.

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 Friday. momondo users have found tickets for Friday departures for as low as £1,113. 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 £1,504.

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 £964. 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 £1,419 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 £983 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 £917 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 30% 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 November 2025, prices for Sydney to London Heathrow Airport flights are approximately 19% 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

Fastest flight time

24h 50m

Direct flights

Every day
The fastest flight from Sydney to London Heathrow Airport takes 24h 50m
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 25h 20m 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 £614Free CancellationRating
7.5
119 reviews
Search China Southern flights
Air ChinaPriceFrom £681Free CancellationRating
7.2
126 reviews
Search Air China flights
China EasternPriceFrom £691Free CancellationRating
7.2
178 reviews
Search China Eastern flights
Air IndiaPriceFrom £707Free CancellationRating
5.5
2,947 reviews
Search Air India flights
Etihad AirwaysPriceFrom £740Free CancellationRating
7.4
1,312 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom £743Free CancellationRating
7.3
4,060 reviews
Search Turkish Airlines flights
Cathay PacificPriceFrom £757Free CancellationRating
7.6
1,072 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom £767Free CancellationRating
7.4
3,675 reviews
Search Qatar Airways flights
Malaysia AirlinesPriceFrom £792Free CancellationRating
7.3
281 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom £802Free CancellationRating
8.1
1,410 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 £957 round-trip, up to an average price of £1,231. 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
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Stratford-upon-Avon
Canterbury
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Hayes
Dover
Chelmsford
Colchester

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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
lør. 27/12
lør. 3/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London