Flights from London Heathrow to Sydney with United Airlines

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
Outbound
16/03/26
1 Stopover (IAH)
UA0004, UA0101
31h 55min
Return
01/04/26
2 Stopovers (LAX, IAD)
UA0842, UA0688, UA0918
30h 25min
United Airlines
£898
London Heathrow
Sydney
Outbound
21/03/26
1 Stopover (LAX)
UA0935, UA0839
30h 45min
Return
06/04/26
1 Stopover (SFO)
UA0870, UA0901
30h 05min
United Airlines
£900
London Heathrow
Sydney
Outbound
31/03/26
2 Stopovers (IAH, LAX)
UA0004, UA2095, UA0839
32h 20min
Return
16/04/26
2 Stopovers (LAX, IAH)
UA0842, UA1280, UA0880
31h 10min
United Airlines
£904
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: London Heathrow - Sydney

Cheapest outbound flight from 950,12 £GB
Outbound and return from 612,96 £GB
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
Flight destinations with a similar price