Cheapest return flights from Sydney to London in December from 1029€

Best time to book flights for Sydney (SYD) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Sydney (SYD) to London (LHR) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec Cathay Pacific
07 Dec - 29 Dec China Airlines
05 Dec - 20 Dec China Airlines
05 Dec - 19 Dec China Airlines
05 Dec - 23 Jan China Airlines
05 Dec - 07 Jan China Airlines
02 Dec - 02 Jan China Airlines
05 Dec - 03 Jan China Airlines
30 Dec - 10 Jan China Airlines
01 Dec - 22 Jan Singapore Airlines
07 Dec - 17 Jan China Airlines
07 Dec - 03 Jan China Airlines
05 Dec - 05 Jan China Airlines
02 Dec - 10 Jan China Airlines
08 Dec - 29 Dec Vietnam Airlines
04 Dec - 29 Dec Asiana Airlines
04 Dec - 27 Dec Asiana Airlines
05 Dec - 30 Dec Vietnam Airlines
10 Dec - 30 Dec Vietnam Airlines
01 Dec - 15 Dec Etihad Airways

Also check the deals for one-way flights from Sydney to London in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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