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

Return flights

02 Jul - 09 Jul	China Eastern
02 Jul - 12 Jul	Air China
03 Jul - 08 Jul	Air China
02 Jul - 08 Jul	Air China
01 Jul - 07 Jul	Air China
28 Jul - 04 Aug	China Eastern
16 Jul - 30 Jul	China Eastern
10 Jul - 17 Jul	Air China
12 Jul - 20 Jul	Air China
23 Jul - 18 Aug	Vietnam Airlines
29 Jul - 08 Aug	China Airlines
29 Jul - 05 Aug	China Airlines
02 Jul - 13 Jul	Asiana Airlines
31 Jul - 09 Aug	China Airlines
30 Jul - 10 Aug	Vietnam Airlines
31 Jul - 08 Aug	China Airlines
01 Jul - 13 Jul	Korean Air
24 Jul - 04 Aug	China Airlines
25 Jul - 05 Aug	Asiana Airlines
31 Jul - 10 Aug	Asiana Airlines

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 $757

Return flights