AirHint found the following cheapest return flights from Busan (PUS) to London (LGW) in October 2025 (see full year).

Return flights

04 Oct - 11 Oct	Air Busan
29 Oct - 10 Nov	Singapore Airlines
03 Oct - 11 Oct	Air Busan
25 Oct - 29 Oct	Singapore Airlines
03 Oct - 10 Oct	Air China
05 Oct - 12 Oct	Singapore Airlines
05 Oct - 13 Oct	Air China
04 Oct - 13 Oct	Air China
04 Oct - 12 Oct	Singapore Airlines
04 Oct - 10 Oct	Singapore Airlines
02 Oct - 10 Oct	Singapore Airlines

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

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 October from 1005€

Return flights