Flights from London Heathrow to Sydney

Our cheapest offers for flights from London Heathrow to Sydney

Here you can compare cheap flights from London Heathrow (LHR) to Sydney (SYD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Sydney. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Sydney
Please note: transfer for connecting flight
Outbound
26/10/25
3 Stopovers (BLR, MAA, SIN)
AI0132, AI9478, TR0579, TR0012
34h 45min
Return
-
Air India, Scoot
£491
Offers unavailable
London Heathrow
Sydney
Outbound
12/04/26
1 Stopover (PEK)
CA0856, CA0173
31h 10min
Return
28/04/26
1 Stopover (PEK)
CA0174, CA0855
33h 50min
Air China
£617
Best option
London Heathrow
Sydney
Outbound
06/04/26
direct
BA0015
22h 45min
Return
23/04/26
direct
BA0016
23h 45min
British Airways ?
£877
London Heathrow
Sydney
Please note: transfer for connecting flight
Outbound
29/03/26
3 Stopovers (ARN, BKK, SIN)
SK1530, N00191, TR0605, TR0002
43h 55min
Return
14/04/26
2 Stopovers (MEL, BWN)
JQ0501, BI0006, BI0097
33h 25min
SAS Scandinavian Airlines, Norse Atlantic Airways, Scoot
£1,029
London Heathrow
Sydney
Outbound
29/10/25
1 Stopover (CAN)
CZ0304, CZ0325
24h 25min
Return
05/12/25
2 Stopovers (CAN, PKX)
CZ0302, CZ3099, CZ0673
31h 25min
China Southern Airlines
£647
London Heathrow
Sydney
Outbound
26/10/25
2 Stopovers (WUH, CAN)
CZ0608, CZ8721, CZ0301
40h 05min
Return
18/11/25
1 Stopover (CAN)
CZ0302, CZ0303
31h 15min
China Southern Airlines
£668
Offers unavailable
London Heathrow
Sydney
Outbound
22/04/26
2 Stopovers (PEK, SIN)
CA0856, CA0975, TR0012
35h 50min
Return
09/05/26
2 Stopovers (SIN, PEK)
TR0013, CA0976, CA0855
32h 45min
Air China, Scoot
£683
London Heathrow
Sydney
Outbound
26/10/25
1 Stopover (PVG)
MU0552, MU0735
29h 35min
Return
18/11/25
1 Stopover (PVG)
MU0736, MU0551
31h 00min
China Eastern Airlines
£698
Offers unavailable
London Heathrow
Sydney
Outbound
02/11/25
1 Stopover (CAN)
CZ0304, CZ0325
24h 25min
Return
09/12/25
1 Stopover (CAN)
CZ0302, CZ0303
31h 25min
China Southern Airlines
£704
London Heathrow
Sydney
Outbound
26/04/26
2 Stopovers (WUH, CAN)
CZ0608, CZ6224, CZ0301
39h 25min
Return
13/05/26
2 Stopovers (CAN, PKX)
CZ0302, CZ3099, CZ0673
29h 20min
China Southern Airlines
£714
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Sydney

Favourite airline: e.g. Air India, Air China
68 % of flights booked on the route from London Heathrow to Sydney are booked with Air India, Air China and Emirates.
Air India
29 %
Air China
29 %
Emirates
10 %
Favourite connection: via Beijing International
The most popular flights on this route are via Beijing International and are booked by 60 % of all travellers.
Route
bookings
1 stopover Beijing International
31h 10min, from 649 GBP
60 %
1 stopover Dubai
28h 15min, from 1 277 GBP
20 %
1 stopover Guangzhou Baiyun
25h 15min, from 1 012 GBP
13 %

Important flight information

Flight information: London Heathrow - Sydney

Cheapest outbound flight from 490,99 GBP
Outbound and return from 616,58 GBP
Flight duration min. 20:30 / max. 21:00
Return flight duration min. 22:00/ max. 22:25
Distance 17039 km
Flights per week 16
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport Sydney Kingsford Smith (SYD)
Destination country Flights to Australia
Alternative routes to Australia
Alternative flights to Sydney
Popular destinations for onward travel
Flight destinations with a similar price