Book flights from London to Australia with Cathay Pacific from GBP1,109

PROMOTION CODE (OPTIONAL)

Popular flights from London to Australia

keyboard_arrow_down
Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)

Explore flight fares from London to Australia

Make flexible bookings with Cathay Pacific and enjoy hassle-free travel when plans change.

keyboard_arrow_down

London (LHR)to

Sydney (SYD)
11/11/2026 - 21/11/2026

Round-trip

Economy

From
GBP1,114
Seen 6 hours ago

London (LHR)to

Sydney (SYD)
07/11/2026 - 21/11/2026

Round-trip

Economy

From
GBP1,114
Seen 6 hours ago

London (LHR)to

Sydney (SYD)
12/11/2026 - 21/11/2026

Round-trip

Economy

From
GBP1,114
Seen 6 hours ago

London (LHR)to

Melbourne (MEL)
02/11/2026 - 30/11/2026

Round-trip

Economy

From
GBP1,109
Seen 1 day ago

London (LHR)to

Melbourne (MEL)
04/11/2026 - 30/11/2026

Round-trip

Economy

From
GBP1,109
Seen 1 day ago

London (LHR)to

Melbourne (MEL)
10/11/2026 - 30/11/2026

Round-trip

Economy

From
GBP1,109
Seen 1 day ago

London (LHR)to

Brisbane (BNE)
29/08/2026 - 03/11/2026

Round-trip

Economy

From
GBP1,113
Seen 1 day ago

London (LHR)to

Brisbane (BNE)
24/08/2026 - 03/11/2026

Round-trip

Economy

From
GBP1,113
Seen 1 day ago

London (LHR)to

Brisbane (BNE)
02/09/2026 - 03/11/2026

Round-trip

Economy

From
GBP1,113
Seen 1 day ago

London (LHR)to

Perth (PER)
14/11/2026 - 11/12/2026

Round-trip

Economy

From
GBP1,138
Seen 3 hours ago

London (LHR)to

Perth (PER)
15/11/2026 - 05/12/2026

Round-trip

Economy

From
GBP1,149
Seen 11 hours ago

London (LHR)to

Perth (PER)
17/11/2026 - 05/12/2026

Round-trip

Economy

From
GBP1,149
Seen 11 hours ago

London (LHR)to

Adelaide (ADL)
24/12/2026 - 20/01/2027

Round-trip

Economy

From
GBP1,229
Seen 1 day ago

London (LHR)to

Adelaide (ADL)
27/12/2026 - 20/01/2027

Round-trip

Economy

From
GBP1,244
Seen 1 day ago

London (LHR)to

Adelaide (ADL)
25/12/2026 - 20/01/2027

Round-trip

Economy

From
GBP1,244
Seen 1 day ago

London (LHR)to

Cairns (CNS)
28/09/2026 - 07/10/2026

Round-trip

Economy

From
GBP1,684
Seen 16 hours ago

London (LHR)to

Cairns (CNS)
29/09/2026 - 07/10/2026

Round-trip

Economy

From
GBP1,755
Seen 16 hours ago

London (LHR)to

Cairns (CNS)
01/10/2026 - 07/10/2026

Round-trip

Economy

From
GBP1,755
Seen 16 hours ago
Lowest fares on round-trip flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.

All fares displayed include taxes and carrier-imposed surcharges. All fares, government taxes and fees, and surcharges are subject to change at any time. For ticket cancellations, where applicable, the Hong Kong Passenger Security Charge, the Hong Kong Air Passenger Departure Tax, and the Hong Kong International Airport Construction Fee will be refunded without any administration fees.