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	Baggage	Price
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (CAN) CZ0304, CZ0301 36h 30min	Return 07/06/26 1 Stopover (CAN) CZ0326, CZ0303 41h 55min	China Southern Airlines		£640
Best option London Heathrow Sydney	Outbound 25/05/26 1 Stopover (DEL) AI0162, AI0302 23h 40min	Return 07/06/26 1 Stopover (DEL) AI0301, AI0111 24h 30min	Air India	?	£684
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (CAN) CZ0304, CZ0301 36h 30min	Return 07/06/26 2 Stopovers (CAN, PKX) CZ0302, CZ3099, CZ0673 29h 20min	China Southern Airlines		£648
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (CAN) CZ0304, CZ8091 29h 25min	Return 07/06/26 1 Stopover (CAN) CZ0302, CZ0303 30h 15min	China Southern Airlines		£667
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (CAN) CZ0304, CZ0325 25h 15min	Return 07/06/26 1 Stopover (CAN) CZ0302, CZ0303 30h 15min	China Southern Airlines		£670
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (CAN) CZ0304, CZ0325 25h 15min	Return 07/06/26 1 Stopover (CAN) CZ0326, CZ0303 41h 55min	China Southern Airlines		£681
London Heathrow Sydney	Outbound 25/05/26 1 Stopover (DEL) AI0112, AI0302 44h 10min	Return 07/06/26 1 Stopover (DEL) AI0301, AI0111 24h 30min	Air India	?	£725
London Heathrow Sydney	Outbound 05/11/26 2 Stopovers (IST, AUH) TK1984, TK8050, TK8318 32h 15min	Return 17/01/27 2 Stopovers (AUH, IST) TK8621, TK0867, TK1985 33h 20min	Turkish Airlines		£741
London Heathrow Sydney	Outbound 05/11/26 2 Stopovers (IST, AUH) TK1984, TK8050, TK8318 32h 15min	Return 17/01/27 2 Stopovers (AUH, IST) TK8621, TK0867, TK1983 39h 30min	Turkish Airlines		£748
London Heathrow Sydney	Outbound 05/11/26 2 Stopovers (IST, AUH) TK1984, TK8050, TK8318 32h 15min	Return 17/01/27 2 Stopovers (AUH, IST) TK8621, TK0867, TK1971 34h 35min	Turkish Airlines		£757

Tips and tricks to help you find cheap flights from London Heathrow to Sydney

Important flight information

Flight information: London Heathrow - Sydney

Outbound and return from	639,99 £
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

Flight London Heathrow - Melbourne from 594 £
Flight London Heathrow - Cairns from 818 £
Flight London Heathrow - Adelaide from 944 £
Flight London Heathrow - Perth from 664 £
Flight London Heathrow - Brisbane from 670 £

Alternative flights to Sydney

Flight London - Sydney from 622 £
Flight Birmingham - Sydney from 848 £
Flight London City - Sydney from 951 £
Flight Manchester - Sydney from 720 £
Flight London Gatwick - Sydney from 622 £

Popular destinations for onward travel

Flight destinations with a similar price

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Flight London Heathrow - Kathmandu from 605 £
Flight London Heathrow - Mahe from 576 £
Flight London Heathrow - Melbourne from 594 £
Flight London Heathrow - San Juan (Puerto Rico) from 600 £
Flight London Heathrow - Perth from 664 £
Flight London Heathrow - Kabul from 697 £
Flight London Heathrow - Kilimanjaro from 629 £
Flight London Heathrow - Zanzibar from 630 £
Flight London Heathrow - St. John's from 625 £