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Cheap flights from London Heathrow Airport to Sydney from £390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Sydney departing on 14/3. 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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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
12:00 - 18:40
SYD
-
LHR
40h 40m
1 stop
£721China Eastern
Mon, 9 Mar - Sun, 29 Mar
China Southern Logo
21:30 - 20:20
LHR
-
SYD
35h 50m
2 stops
China Southern Logo
22:00 - 18:35
SYD
-
LHR
31h 35m
1 stop
£724China Southern
Thu, 26 Feb - Mon, 23 Mar
China Eastern Logo
21:20 - 08:00
LHR
-
SYD
49h 40m
3 stops
China Eastern Logo
11:00 - 18:40
SYD
-
LHR
40h 40m
1 stop
£724China Eastern
Sun, 10 May - Thu, 28 May
China Southern Logo
17:15 - 09:25
LHR
-
SYD
29h 10m
2 stops
China Southern Logo
11:25 - 15:15
SYD
-
LHR
62h 50m
2 stops
£725China Southern
Sun, 8 Mar - Fri, 27 Mar
China Southern Logo
22:10 - 19:40
LHR
-
SYD
36h 30m
1 stop
China Southern Logo
10:05 - 19:00
SYD
-
LHR
41h 55m
1 stop
£726China Southern
Thu, 23 Apr - Sun, 3 May
China Southern Logo
22:00 - 20:20
LHR
-
SYD
35h 20m
1 stop
China Southern Logo
11:25 - 18:35
SYD
-
LHR
42h 10m
1 stop
£727China Southern
Sun, 1 Mar - Thu, 19 Mar
China Southern Logo
22:10 - 08:25
LHR
-
SYD
25h 15m
1 stop
China Southern Logo
21:45 - 19:00
SYD
-
LHR
30h 15m
1 stop
£728China Southern
Wed, 22 Apr - Mon, 27 Apr
Multiple Airlines Logo
21:25 - 07:55
LHR
-
SYD
23h 30m
1 stop
Multiple Airlines Logo
21:00 - 16:20
SYD
-
LHR
30h 20m
1 stop
£729Multiple Airlines
Tue, 24 Feb - Tue, 17 Mar
China Southern Logo
21:30 - 20:20
LHR
-
SYD
35h 50m
2 stops
China Southern Logo
22:00 - 18:35
SYD
-
LHR
31h 35m
2 stops
£730China Southern
Sat, 7 Mar - Mon, 23 Mar
China Eastern Logo
21:20 - 07:40
LHR
-
SYD
49h 20m
2 stops
China Eastern Logo
10:05 - 18:40
SYD
-
LHR
41h 35m
3 stops
£730China Eastern
Fri, 8 May - Fri, 22 May

China Eastern flights from London Heathrow Airport to Sydney

Our best China Eastern deals on London Heathrow Airport to Sydney flight tickets
China Eastern
9 Mar
LHR21:00London Heathrow
29h 35m
1 stop
SYD13:35Sydney Kingsford Smith
29 Mar
SYD12:00Sydney Kingsford Smith
40h 40m
1 stop
LHR18:40London Heathrow
£721
China Eastern
14 May
LHR21:20London Heathrow
49h 40m
3 stops
SYD08:00Sydney Kingsford Smith
24 Jun
SYD20:30Sydney Kingsford Smith
31h 10m
1 stop
LHR18:40London Heathrow
£724
China Eastern
8 May
LHR21:20London Heathrow
49h 20m
2 stops
SYD07:40Sydney Kingsford Smith
27 May
SYD10:05Sydney Kingsford Smith
41h 35m
2 stops
LHR18:40London Heathrow
£730

Air India flights from London Heathrow Airport to Sydney

Our best Air India deals on London Heathrow Airport to Sydney flight tickets
Air India
10 Apr
LHR09:45London Heathrow
23h 40m
1 stop
SYD18:25Sydney Kingsford Smith
8 May
SYD20:00Sydney Kingsford Smith
24h 30m
1 stop
LHR11:30London Heathrow
£737
Air India
2 Mar
LHR21:05London Heathrow
35h 10m
1 stop
SYD19:15Sydney Kingsford Smith
16 Mar
SYD20:45Sydney Kingsford Smith
25h 45m
1 stop
LHR11:30London Heathrow
£753

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Sydney 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 28 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 9/3

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Sun 29/3

12:00-18:40

1 stop40h 40m

£721

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 26/2

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Mon 23/3

22:00-18:35

1 stop31h 35m

£724

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 10/5

21:20-08:00

3 stops49h 40m

Sydney Kingsford Smith

Thu 28/5

11:00-18:40

1 stop40h 40m

£724

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 8/3

17:15-09:25

2 stops29h 10m

Sydney Kingsford Smith

Fri 27/3

11:25-15:15

2 stops62h 50m

£725

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 23/4

22:10-19:40

1 stop36h 30m

Sydney Kingsford Smith

Sun 3/5

10:05-19:00

1 stop41h 55m

£726

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 1/3

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Thu 19/3

11:25-18:35

1 stop42h 10m

£727

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 22/4

22:10-08:25

1 stop25h 15m

Sydney Kingsford Smith

Mon 27/4

21:45-19:00

1 stop30h 15m

£728

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 24/2

21:25-07:55

1 stop23h 30m

Sydney Kingsford Smith

Tue 17/3

21:00-16:20

1 stop30h 20m

£729

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 7/3

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Mon 23/3

22:00-18:35

2 stops31h 35m

£730

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 8/5

21:20-07:40

2 stops49h 20m

Sydney Kingsford Smith

Fri 22/5

10:05-18:40

3 stops41h 35m

£730

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 Sydney from

How to get the cheapest flight ticket from London Heathrow Airport to Sydney

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 London Heathrow Airport and Sydney?

What is the cheapest month to fly to Sydney?

In general, May is the cheapest month to fly from London Heathrow Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £769. If you don’t want to visit Sydney in May, then you should wait until November to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £839.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,131. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,273.

What is the cheapest London Heathrow to Sydney Kingsford Smith flight route?

Fly from London Heathrow to Sydney Kingsford Smith for the best London Heathrow - Sydney Kingsford Smith flight prices

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £966 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from London Heathrow Airport for as low as £850 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Sydney flight prices changed over time?

As of January 2026, prices for London Heathrow Airport to Sydney flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Sydney (LHR to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Sydney

Best price found

£1,018

Fastest flight time

22h 55m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from London Heathrow Airport in the past 72 hours is £1,018. The best return flight deal from London Heathrow Airport to Sydney found on momondo in the last 72 hours is £946.
The fastest flight from London Heathrow Airport to Sydney takes 22h 55m
Direct flights go from London Heathrow Airport to Sydney every day.
There is 1 airport in Sydney. From London Heathrow Airport there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

  • How far is London Heathrow to Sydney Kingsford Smith by plane?

    Sydney Kingsford Smith is 10566.1 mi away from London Heathrow. A reasonable flight in good conditions will take 22h 55m.

  • When did momondo last update prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

    Prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from London Heathrow Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London Heathrow Airport to Sydney?

  • What is the most popular airline from London Heathrow Airport to Sydney?

Best airlines flying from London Heathrow Airport to Sydney

Compare and see reviews for airlines that fly from London Heathrow Airport to Sydney with momondo
Airline
Rating
Free Cancellation
Price
Hainan AirlinesPriceFrom £328Free CancellationRating
8.2
62 reviews
Search Hainan Airlines flights
Air ChinaPriceFrom £498Free CancellationRating
7.2
138 reviews
Search Air China flights
China EasternPriceFrom £548Free CancellationRating
7.2
191 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £662Free CancellationRating
8.1
501 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom £698Free CancellationRating
7.3
4,209 reviews
Search Turkish Airlines flights
SWISSPriceFrom £718Free CancellationRating
7.6
1,863 reviews
Search SWISS flights
China AirlinesPriceFrom £732Free CancellationRating
8.3
802 reviews
Search China Airlines flights
Air New ZealandPriceFrom £749Free CancellationRating
8.0
577 reviews
Search Air New Zealand flights
EmiratesPriceFrom £793Free CancellationRating
8.1
3,488 reviews
Search Emirates flights
Vietnam AirlinesPriceFrom £799Free CancellationRating
7.6
224 reviews
Search Vietnam Airlines flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Wollongong
Randwick
Manly
Coogee
Leura
Penrith
Katoomba
Cronulla
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from London to Sydney?

It is quick and easy to find London to Sydney 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 Sydney that suits you.

Can I find flights from London to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Sydney?

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 London to Sydney.

I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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