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

Return flights

28 Aug - 31 Aug	Korean Air	direct
29 Aug - 01 Sep	Korean Air	direct
20 Aug - 27 Aug	Korean Air	direct
08 Aug - 17 Aug	Korean Air	direct
07 Aug - 11 Aug	Korean Air	direct
08 Aug - 10 Aug	Korean Air	direct

Also check the deals for one-way flights from Beijing to Busan 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 Beijing to Busan in August from $225

Return flights