AirHint found the following cheapest return flights from Busan (PUS) to Lisbon (LIS) in August 2025 (see full year).

Return flights

25 Aug - 03 Sep	Air China
06 Aug - 13 Aug	China Eastern
03 Aug - 07 Aug	Shanghai Airlines
20 Aug - 27 Aug	Air China
29 Aug - 03 Sep	Air China
03 Aug - 09 Aug	Shanghai Airlines
15 Aug - 22 Aug	T'way Air
02 Aug - 11 Aug	China Eastern
12 Aug - 18 Aug	China Eastern
28 Aug - 03 Sep	Air China
05 Aug - 13 Aug	Shanghai Airlines
01 Aug - 08 Aug	Air China
05 Aug - 12 Aug	Air China
25 Aug - 01 Sep	Japan Airlines
31 Aug - 09 Sep	Japan Airlines

Also check the deals for one-way flights from Busan to Lisbon in August.

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 Lisbon in August from 888€

Return flights