Cheapest return flights from Adelaide to London in December from $1410

Best time to book flights for Adelaide (ADL) to London (LHR) flights at AirHint

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

Return flights

01 Dec - 20 Jan China Southern
12 Dec - 23 Dec Singapore Airlines
16 Dec - 26 Jan Singapore Airlines
11 Dec - 30 Dec Singapore Airlines
10 Dec - 20 Jan Singapore Airlines
12 Dec - 09 Jan Singapore Airlines
12 Dec - 21 Jan Singapore Airlines
16 Dec - 20 Jan Singapore Airlines
16 Dec - 06 Jan Singapore Airlines
16 Dec - 15 Jan Malaysia Airlines
12 Dec - 02 Jan Malaysia Airlines
20 Dec - 21 Jan Singapore Airlines
12 Dec - 22 Dec Singapore Airlines

Also check the deals for one-way flights from Adelaide 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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