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 02/03/26 1 Stopover (DEL) AI0112, AI0302 43h 15min	Return 15/03/26 1 Stopover (DEL) AI0301, AI0111 25h 45min	Air India		£604
Best option London Heathrow Sydney	Outbound 24/02/26 1 Stopover (PVG) MU0552, MU7061 22h 30min	Return 10/03/26 1 Stopover (PVG) MU0736, MU0551 31h 00min	China Eastern Airlines		£685
London Heathrow Sydney	Outbound 02/03/26 1 Stopover (DEL) AI0112, AI0302 43h 15min	Return 15/03/26 1 Stopover (DEL) AI0301, AI2017 33h 35min	Air India	?	£629
London Heathrow Sydney	Outbound 24/02/26 1 Stopover (PVG) MU0552, MU0735 29h 35min	Return 10/03/26 2 Stopovers (TNA, PVG) MU0764, MU5534, MU0551 43h 10min	China Eastern Airlines		£686
London Heathrow Sydney	Outbound 24/02/26 1 Stopover (PVG) MU0552, MU0735 29h 35min	Return 10/03/26 1 Stopover (PVG) MU0736, MU0551 31h 00min	China Eastern Airlines		£689
London Heathrow Sydney	Outbound 24/02/26 1 Stopover (PVG) MU0552, MU0735 29h 35min	Return 10/03/26 1 Stopover (PVG) MU0736, MU0551 31h 00min	China Eastern Airlines		£716
London Heathrow Sydney	Outbound 24/02/26 2 Stopovers (IST, AUH) TK1984, TK8050, TK8318 32h 20min	Return 10/03/26 2 Stopovers (AUH, IST) TK8621, TK0869, TK1985 33h 20min	Turkish Airlines		£731
London Heathrow Sydney	Outbound 31/01/26 2 Stopovers (PVG, TNA) MU0552, MU2441, MU0763 46h 55min	Return 03/02/26 1 Stopover (PVG) MU0562, MU0551 40h 30min	China Eastern Airlines		£752
London Heathrow Sydney	Outbound 31/01/26 2 Stopovers (PVG, TNA) MU0552, MU2441, MU0763 46h 55min	Return 03/02/26 1 Stopover (PVG) MU0562, MU0551 40h 30min	China Eastern Airlines		£767
London Heathrow Sydney	Outbound 24/02/26 1 Stopover (DEL) AI2016, AI0302 34h 15min	Return 10/03/26 1 Stopover (DEL) AI0301, AI0111 25h 45min	Air India	?	£770

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	603,20 £
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 734 £
Flight London Heathrow - Adelaide from 1.006 £
Flight London Heathrow - Perth from 788 £
Flight London Heathrow - Cairns from 583 £
Flight London Heathrow - Brisbane from 573 £

Alternative flights to Sydney

Flight London - Sydney from 594 £
Flight Manchester - Sydney from 535 £
Flight London Gatwick - Sydney from 594 £
Flight Birmingham - Sydney from 856 £
Flight London City - Sydney from 845 £

Popular destinations for onward travel

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Flight London Heathrow - Zanzibar from 628 £
Flight London Heathrow - Jakarta - Soekarno-Hatta International from 563 £
Flight London Heathrow - St. Vincent from 660 £
Flight London Heathrow - Port Elizabeth from 579 £
Flight London Heathrow - Guayaquil from 608 £