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

Return flights

18 Jul - 24 Jul	Air China
23 Jul - 30 Jul	Air China
15 Jul - 29 Jul	Air China
23 Jul - 06 Aug	Air China
11 Jul - 18 Jul	Air China
23 Jul - 29 Jul	Air China
09 Jul - 16 Jul	Asiana Airlines
22 Jul - 29 Jul	Air China
21 Jul - 28 Jul	Air China
19 Jul - 28 Jul	Air China
22 Jul - 28 Jul	Air China
29 Jul - 04 Aug	Air China
28 Jul - 06 Aug	Air China
27 Jul - 01 Aug	Air Busan
24 Jul - 06 Aug	China Airlines
24 Jul - 04 Aug	China Airlines
25 Jul - 06 Aug	China Airlines
29 Jul - 05 Aug	China Airlines
30 Jul - 04 Aug	Air China
12 Jul - 12 Aug	Cathay Pacific

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

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 July from 694€

Return flights