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Cheap flights from London Heathrow Airport to Sydney from C$ 914

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 7/2. 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.
Air India Logo
1:00 p.m. - 7:15 p.m.
LHR
-
SYD
43h 15m1 stop
Air India Logo
8:45 p.m. - 7:20 p.m.
SYD
-
LHR
33h 35m1 stop
C$ 1,466Air India
ter, 17 fev - ter, 24 fev
Air India Logo
1:15 p.m. - 6:00 p.m.
LHR
-
SYD
43h 45m1 stop
Air India Logo
7:30 p.m. - 11:30 a.m.
SYD
-
LHR
25h 00m1 stop
C$ 1,478Air India
seg, 1 jun - qui, 6 ago
Vietnam Airlines Logo
7:50 p.m. - 8:15 a.m.
LHR
-
SYD
27h 25m1 stop
Vietnam Airlines Logo
10:15 a.m. - 5:50 p.m.
SYD
-
LHR
40h 35m1 stop
C$ 1,494Vietnam Airlines
ter, 26 mai - seg, 8 jun
Austrian Airlines Logo
7:30 p.m. - 10:20 a.m.
LHR
-
SYD
29h 50m2 stops
Austrian Airlines Logo
2:50 p.m. - 8:20 a.m.
SYD
-
LHR
26h 30m2 stops
C$ 1,546Austrian Airlines
qua, 6 mai - ter, 26 mai
Vietnam Airlines Logo
7:50 p.m. - 8:15 a.m.
LHR
-
SYD
27h 25m1 stop
Vietnam Airlines Logo
10:15 a.m. - 4:55 p.m.
SYD
-
LHR
39h 40m1 stop
C$ 1,553Vietnam Airlines
ter, 2 jun - qua, 17 jun
Air India Logo
10:00 p.m. - 7:15 p.m.
LHR
-
SYD
34h 15m1 stop
Air India Logo
8:45 p.m. - 8:30 p.m.
SYD
-
LHR
34h 45m1 stop
C$ 1,557Air India
qua, 4 fev - qua, 4 mar
Air India Logo
10:00 p.m. - 7:15 p.m.
LHR
-
SYD
34h 15m1 stop
Air India Logo
8:45 p.m. - 11:30 a.m.
SYD
-
LHR
25h 45m1 stop
C$ 1,558Air India
qua, 4 fev - qua, 4 mar
Etihad Airways Logo
1:55 p.m. - 5:55 p.m.
LHR
-
SYD
41h 00m1 stop
Etihad Airways Logo
3:40 p.m. - 3:15 p.m.
SYD
-
LHR
32h 35m1 stop
C$ 1,560Etihad Airways
sáb, 7 fev - qua, 13 mai
Etihad Airways Logo
8:55 p.m. - 5:55 p.m.
LHR
-
SYD
34h 00m1 stop
Etihad Airways Logo
9:45 p.m. - 12:05 p.m.
SYD
-
LHR
25h 20m1 stop
C$ 1,561Etihad Airways
ter, 3 mar - sex, 20 mar
China Airlines Logo
9:10 p.m. - 10:45 a.m.
LHR
-
SYD
28h 35m1 stop
China Airlines Logo
10:10 p.m. - 4:30 p.m.
SYD
-
LHR
27h 20m1 stop
C$ 1,562China Airlines
qua, 22 abr - dom, 17 mai

Austrian Airlines flights from London Heathrow Airport to Sydney

Our best Austrian Airlines deals on London Heathrow Airport to Sydney flight tickets
Austrian Airlines
6 May
LHR7:30 p.m.London Heathrow
29h 50m
2 stops
SYD10:20 a.m.Sydney Kingsford Smith
26 May
SYD2:50 p.m.Sydney Kingsford Smith
26h 30m
2 stops
LHR8:20 a.m.London Heathrow
C$ 1,546
Find similar
Austrian Airlines
6 May
LHR7:30 p.m.London Heathrow
29h 50m
2 stops
SYD10:20 a.m.Sydney Kingsford Smith
28 May
SYD2:50 p.m.Sydney Kingsford Smith
26h 30m
2 stops
LHR8:20 a.m.London Heathrow
C$ 1,623
Find similar
Austrian Airlines
3 Mar
LHR7:25 p.m.London Heathrow
29h 30m
2 stops
SYD11:55 a.m.Sydney Kingsford Smith
25 May
SYD2:50 p.m.Sydney Kingsford Smith
29h 35m
2 stops
LHR11:25 a.m.London Heathrow
C$ 1,647
Find similar

Lufthansa flights from London Heathrow Airport to Sydney

Our best Lufthansa deals on London Heathrow Airport to Sydney flight tickets
Lufthansa
7 May
LHR5:30 p.m.London Heathrow
27h 40m
2 stops
SYD6:10 a.m.Sydney Kingsford Smith
26 May
SYD2:50 p.m.Sydney Kingsford Smith
26h 25m
2 stops
LHR8:15 a.m.London Heathrow
C$ 1,575
Find similar
Lufthansa
29 May
LHR5:30 p.m.London Heathrow
27h 40m
2 stops
SYD6:10 a.m.Sydney Kingsford Smith
7 Jun
SYD2:05 p.m.Sydney Kingsford Smith
27h 35m
2 stops
LHR8:40 a.m.London Heathrow
C$ 1,631
Find similar
Lufthansa
6 May
LHR5:30 p.m.London Heathrow
27h 40m
2 stops
SYD6:10 a.m.Sydney Kingsford Smith
27 May
SYD2:50 p.m.Sydney Kingsford Smith
26h 25m
2 stops
LHR8:15 a.m.London Heathrow
C$ 1,652
Find similar

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 11 dezembro 2025.
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

ter 17/2

1:00 p.m.-7:15 p.m.

1 stop43h 15m

Sydney Kingsford Smith

ter 24/2

8:45 p.m.-7:20 p.m.

1 stop33h 35m

C$ 1,466

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

seg 1/6

1:15 p.m.-6:00 p.m.

1 stop43h 45m

Sydney Kingsford Smith

qui 6/8

7:30 p.m.-11:30 a.m.

1 stop25h 00m

C$ 1,478

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

ter 26/5

7:50 p.m.-8:15 a.m.

1 stop27h 25m

Sydney Kingsford Smith

seg 8/6

10:15 a.m.-5:50 p.m.

1 stop40h 35m

C$ 1,494

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

qua 6/5

7:30 p.m.-10:20 a.m.

2 stops29h 50m

Sydney Kingsford Smith

ter 26/5

2:50 p.m.-8:20 a.m.

2 stops26h 30m

C$ 1,546

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

ter 2/6

7:50 p.m.-8:15 a.m.

1 stop27h 25m

Sydney Kingsford Smith

qua 17/6

10:15 a.m.-4:55 p.m.

1 stop39h 40m

C$ 1,553

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

qua 4/2

10:00 p.m.-7:15 p.m.

1 stop34h 15m

Sydney Kingsford Smith

qua 4/3

8:45 p.m.-8:30 p.m.

1 stop34h 45m

C$ 1,557

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

qua 4/2

10:00 p.m.-7:15 p.m.

1 stop34h 15m

Sydney Kingsford Smith

qua 4/3

8:45 p.m.-11:30 a.m.

1 stop25h 45m

C$ 1,558

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

sáb 7/2

1:55 p.m.-5:55 p.m.

1 stop41h 00m

Sydney Kingsford Smith

qua 13/5

3:40 p.m.-3:15 p.m.

1 stop32h 35m

C$ 1,560

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

ter 3/3

8:55 p.m.-5:55 p.m.

1 stop34h 00m

Sydney Kingsford Smith

sex 20/3

9:45 p.m.-12:05 p.m.

1 stop25h 20m

C$ 1,561

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

qua 22/4

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

1 stop28h 35m

Sydney Kingsford Smith

dom 17/5

10:10 p.m.-4:30 p.m.

1 stop27h 20m

C$ 1,562

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 March is also cheap. Prices for this month can be found on momondo for an average of C$ 1,525.

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

The cheapest day to depart from London Heathrow Airport to Sydney is on a Wednesday when prices can be found for as low as C$ 1,969. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around C$ 2,803.

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$ 1,824 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$ 1,510 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 December 2025, prices for London Heathrow Airport to Sydney flights are approximately 8% 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

32h 15m

Direct flights

Every day

Airports in Sydney

1 airport
The fastest flight from London Heathrow Airport to Sydney takes 32h 15m
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?

    The straight-line distance from London Heathrow to Sydney Kingsford Smith is 17004.5 km. 32h 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
Wollongong
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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