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Cheap flights from London Heathrow Airport to Sydney from C$ 734

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 11/5. 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

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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Eastern Logo
9:20 p.m. - 9:00 a.m.
LHR
-
SYD
26h 40m
1 stop
China Eastern Logo
10:05 a.m. - 6:40 p.m.
SYD
-
LHR
41h 35m
3 stops
C$ 1,362China Eastern
Sun, 10 May - Fri, 22 May
China Eastern Logo
9:20 p.m. - 7:40 a.m.
LHR
-
SYD
49h 20m
2 stops
China Eastern Logo
8:30 p.m. - 6:40 p.m.
SYD
-
LHR
31h 10m
1 stop
C$ 1,368China Eastern
Mon, 4 May - Fri, 22 May
China Eastern Logo
9:20 p.m. - 7:40 a.m.
LHR
-
SYD
49h 20m
2 stops
China Eastern Logo
10:05 a.m. - 6:40 p.m.
SYD
-
LHR
41h 35m
2 stops
C$ 1,373China Eastern
Fri, 8 May - Wed, 27 May
China Eastern Logo
9:20 p.m. - 8:05 a.m.
LHR
-
SYD
49h 45m
3 stops
China Eastern Logo
11:20 a.m. - 6:40 p.m.
SYD
-
LHR
40h 20m
2 stops
C$ 1,377China Eastern
Sat, 16 May - Thu, 28 May
Turkish Airlines Logo
4:40 p.m. - 6:35 a.m.
LHR
-
SYD
26h 55m
2 stops
Turkish Airlines Logo
9:45 p.m. - 4:10 p.m.
SYD
-
LHR
29h 25m
2 stops
C$ 1,386Turkish Airlines
Sat, 21 Feb - Sat, 28 Feb
China Eastern Logo
9:00 p.m. - 1:35 p.m.
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
9:30 p.m. - 5:30 p.m.
SYD
-
LHR
31h 00m
1 stop
C$ 1,387China Eastern
Sun, 1 Mar - Tue, 24 Mar
China Eastern Logo
9:00 p.m. - 1:35 p.m.
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
9:30 p.m. - 5:30 p.m.
SYD
-
LHR
31h 00m
1 stop
C$ 1,391China Eastern
Thu, 12 Mar - Wed, 25 Mar
China Eastern Logo
9:00 p.m. - 1:35 p.m.
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
1:30 p.m. - 5:30 p.m.
SYD
-
LHR
39h 00m
3 stops
C$ 1,397China Eastern
Tue, 3 Mar - Mon, 16 Mar
Turkish Airlines Logo
6:30 a.m. - 4:50 p.m.
LHR
-
SYD
25h 20m
2 stops
Turkish Airlines Logo
3:40 p.m. - 4:00 p.m.
SYD
-
LHR
33h 20m
2 stops
C$ 1,401Turkish Airlines
Thu, 16 Apr - Fri, 8 May
Turkish Airlines Logo
4:40 p.m. - 6:35 a.m.
LHR
-
SYD
26h 55m
2 stops
Turkish Airlines Logo
9:45 p.m. - 2:55 p.m.
SYD
-
LHR
28h 10m
2 stops
C$ 1,405Turkish Airlines
Sat, 21 Feb - Sat, 28 Feb

Air India flights from London Heathrow Airport to Sydney

Our best Air India deals on London Heathrow Airport to Sydney flight tickets
Air India
28 Jun
LHR9:45 a.m.London Heathrow
23h 40m
1 stop
SYD6:25 p.m.Sydney Kingsford Smith
15 Jul
SYD8:00 p.m.Sydney Kingsford Smith
25h 05m
1 stop
LHR12:05 p.m.London Heathrow
C$ 1,427
Air India
10 Jun
LHR8:35 p.m.London Heathrow
36h 50m
1 stop
SYD6:25 p.m.Sydney Kingsford Smith
25 Jun
SYD8:00 p.m.Sydney Kingsford Smith
44h 30m
1 stop
LHR7:30 a.m.London Heathrow
C$ 1,432
Air India
23 Jun
LHR9:45 p.m.London Heathrow
35h 40m
1 stop
SYD6:25 p.m.Sydney Kingsford Smith
31 Jul
SYD8:00 p.m.Sydney Kingsford Smith
32h 00m
1 stop
LHR7:00 p.m.London Heathrow
C$ 1,499

Turkish Airlines flights from London Heathrow Airport to Sydney

Our best Turkish Airlines deals on London Heathrow Airport to Sydney flight tickets
Turkish Airlines
21 Feb
LHR4:40 p.m.London Heathrow
26h 55m
2 stops
SYD6:35 a.m.Sydney Kingsford Smith
28 Feb
SYD9:45 p.m.Sydney Kingsford Smith
29h 25m
2 stops
LHR4:10 p.m.London Heathrow
C$ 1,386
Turkish Airlines
16 Apr
LHR6:30 a.m.London Heathrow
25h 20m
2 stops
SYD4:50 p.m.Sydney Kingsford Smith
8 May
SYD3:40 p.m.Sydney Kingsford Smith
33h 20m
2 stops
LHR4:00 p.m.London Heathrow
C$ 1,401
Turkish Airlines
21 Feb
LHR4:40 p.m.London Heathrow
26h 55m
2 stops
SYD6:35 a.m.Sydney Kingsford Smith
28 Feb
SYD9:45 p.m.Sydney Kingsford Smith
28h 10m
2 stops
LHR2:55 p.m.London Heathrow
C$ 1,405

momondo Fare Finder

 
Customize 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 96,600 searches. Data last updated 27 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

Sun 10/5

9:20 p.m.-9:00 a.m.

1 stop26h 40m

Sydney Kingsford Smith

Fri 22/5

10:05 a.m.-6:40 p.m.

3 stops41h 35m

C$ 1,362

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 4/5

9:20 p.m.-7:40 a.m.

2 stops49h 20m

Sydney Kingsford Smith

Fri 22/5

8:30 p.m.-6:40 p.m.

1 stop31h 10m

C$ 1,368

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 8/5

9:20 p.m.-7:40 a.m.

2 stops49h 20m

Sydney Kingsford Smith

Wed 27/5

10:05 a.m.-6:40 p.m.

2 stops41h 35m

C$ 1,373

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 16/5

9:20 p.m.-8:05 a.m.

3 stops49h 45m

Sydney Kingsford Smith

Thu 28/5

11:20 a.m.-6:40 p.m.

2 stops40h 20m

C$ 1,377

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 21/2

4:40 p.m.-6:35 a.m.

2 stops26h 55m

Sydney Kingsford Smith

Sat 28/2

9:45 p.m.-4:10 p.m.

2 stops29h 25m

C$ 1,386

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 1/3

9:00 p.m.-1:35 p.m.

1 stop29h 35m

Sydney Kingsford Smith

Tue 24/3

9:30 p.m.-5:30 p.m.

1 stop31h 00m

C$ 1,387

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 12/3

9:00 p.m.-1:35 p.m.

1 stop29h 35m

Sydney Kingsford Smith

Wed 25/3

9:30 p.m.-5:30 p.m.

1 stop31h 00m

C$ 1,391

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 3/3

9:00 p.m.-1:35 p.m.

1 stop29h 35m

Sydney Kingsford Smith

Mon 16/3

1:30 p.m.-5:30 p.m.

3 stops39h 00m

C$ 1,397

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 16/4

6:30 a.m.-4:50 p.m.

2 stops25h 20m

Sydney Kingsford Smith

Fri 8/5

3:40 p.m.-4:00 p.m.

2 stops33h 20m

C$ 1,401

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 21/2

4:40 p.m.-6:35 a.m.

2 stops26h 55m

Sydney Kingsford Smith

Sat 28/2

9:45 p.m.-2:55 p.m.

2 stops28h 10m

C$ 1,405

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 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?

If you aren’t able to travel to Sydney during the month of May, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 1,579.

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 C$ 1,817 when searching weeks out. 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 C$ 1,598 on momondo.

Can stopping save me money on London Heathrow Airport to Sydney flights?

You could potentially save up to 4% on your flight if you consider stops on a London Heathrow Airport to Sydney flight.

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 round-trip 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

Fastest flight time

43h 15m

Direct flights

Thu and Sun

Airports in Sydney

1 airport
The fastest flight from London Heathrow Airport to Sydney takes 43h 15m
Direct flights go from London Heathrow Airport to Sydney on Thursday and Sunday. There are no airlines offering direct flights.
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?

    The straight-line distance from London Heathrow to Sydney Kingsford Smith is 17004.5 km. 43h 15m is a normal flight duration for this route.

  • 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 are refreshed on a daily basis.

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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Penrith
Bondi Beach

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?

Flights from London to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential London to Sydney 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 London to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from London and alert you when they change.

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