AirHint found the following cheapest return flights from Busan (PUS) to London (LGW) in January 2026 (see full year).

Return flights

22 Jan - 28 Jan	Air China
15 Jan - 28 Jan	Air China
23 Jan - 28 Jan	Singapore Airlines
30 Jan - 03 Feb	Singapore Airlines
30 Jan - 10 Feb	Singapore Airlines
23 Jan - 25 Jan	Singapore Airlines
15 Jan - 27 Jan	Singapore Airlines
24 Jan - 27 Jan	Singapore Airlines
15 Jan - 22 Jan	Singapore Airlines
21 Jan - 26 Jan	Singapore Airlines
18 Jan - 25 Jan	Singapore Airlines
25 Jan - 15 Feb	Singapore Airlines
18 Jan - 13 Feb	Singapore Airlines
06 Jan - 09 Jan	Singapore Airlines

Also check the deals for one-way flights from Busan to London in January.

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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Cheapest return flights from Busan to London in January from 494€

Return flights