Flights from Sydney to London Heathrow

Our cheapest offers for flights from Sydney to London Heathrow

Here you can compare cheap flights from Sydney (SYD) to London Heathrow (LHR) 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 London Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Sydney
London Heathrow
Outbound
20/03/26
2 Stopovers (HKG, ZRH)
QF0127, LX9515, LX0318
35h 00min
Return
17/04/26
2 Stopovers (FRA, PEK)
LH0909, LH7320, CA0173
38h 20min
Qantas Airways, Swiss International Air Lines
£801
Best option
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (CAN)
CZ0326, CZ0303
42h 10min
Return
17/04/26
1 Stopover (CAN)
CZ0304, CZ0325
25h 15min
China Southern Airlines
£885
Sydney
London Heathrow
Outbound
20/03/26
2 Stopovers (HKG, ZRH)
QF0127, LX9515, LX0318
35h 00min
Return
17/04/26
2 Stopovers (FRA, PEK)
LH0909, LH7320, CA0173
38h 20min
Qantas Airways, Swiss International Air Lines
£809
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (PVG)
MU0562, MU0551
40h 30min
Return
17/04/26
1 Stopover (PEK)
CA0856, CA0173
31h 10min
China Eastern Airlines
£905
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (IST)
TK0175, TK1989
27h 55min
Return
17/04/26
1 Stopover (IST)
TK1972, TK0174
39h 45min
Turkish Airlines ?
£939
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (CAN)
CZ0326, CZ0303
42h 10min
Return
17/04/26
1 Stopover (CAN)
CZ0304, CZ0325
25h 15min
China Southern Airlines ?
£977
Sydney
London Heathrow
Outbound
20/03/26
2 Stopovers (SGN, PEK)
VJ0086, CA0904, CA0855
39h 40min
Return
17/04/26
2 Stopovers (VIE, SIN)
BA0728, TR0061, TR0012
39h 05min
VietJet Air, Air China ?
£1,003
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (KUL)
MH0140, MH0004
28h 10min
Return
17/04/26
1 Stopover (KUL)
MH0001, MH0251
23h 50min
Malaysia Airlines ?
£1,030
Sydney
London Heathrow
Outbound
20/03/26
1 Stopover (ICN)
OZ0602, OZ0521
42h 45min
Return
17/04/26
1 Stopover (ICN)
OZ0522, OZ0601
25h 50min
Asiana Airlines
£1,051
Sydney
London Heathrow
Outbound
22/12/25
2 Stopovers (PEK, FRA)
CA0174, LH7321, LH0920
35h 10min
Return
10/01/26
2 Stopovers (FRA, PEK)
LH0909, LH7320, CA0173
37h 00min
Air China, Lufthansa
£1,055
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Sydney to London Heathrow

Favourite airline: Asiana Airlines
78 % of flights booked on the route from Sydney to London Heathrow are booked with Asiana Airlines, Air China and China Eastern.
Asiana Airlines
39 %
Air China
28 %
China Eastern
11 %
Favourite connection: via Seoul Incheon
Stopover flights on this route are especially popular via Seoul Incheon, making up 47 % of bookings.
Route
bookings
1 stopover Seoul Incheon
42h 55min, from 1.045 £
47 %
1 stopover Beijing International
30h 15min, from 686 £
33 %
1 stopover Shanghai Pudong
40h 30min, from 834 £
13 %

Important flight information

Flight information: Sydney - London Heathrow

Outbound and return from 800,99 £
Flight duration min. 22:00 / max. 22:25
Return flight duration min. 20:30/ max. 21:00
Distance 17039 km
Flights per week 16
Departure airport Airport Sydney Kingsford Smith (SYD)
Departure country Flights from Australia
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative flights to London Heathrow
Popular destinations for onward travel