AirHint found the following cheapest return flights from Seoul (GMP) to Budapest (BUD) in September 2025 (see full year).

Return flights

18 Sep - 22 Sep	Air China
07 Sep - 24 Oct	Air China
10 Sep - 15 Sep	Air China
10 Sep - 22 Sep	Air China
10 Sep - 18 Sep	Air China
10 Sep - 30 Oct	Air China
20 Sep - 22 Sep	Air China
17 Sep - 18 Sep	Air China
17 Sep - 22 Sep	Air China
24 Sep - 16 Oct	Air China
08 Sep - 15 Sep	Air China
25 Sep - 02 Oct	Air China
04 Sep - 09 Sep	Japan Airlines
06 Sep - 09 Sep	Japan Airlines
28 Sep - 08 Oct	China Eastern
24 Sep - 09 Oct	Air China
25 Sep - 06 Oct	Air China
29 Sep - 14 Oct	Japan Airlines
18 Sep - 05 Oct	Japan Airlines
18 Sep - 14 Oct	Japan Airlines

Also check the deals for one-way flights from Seoul to Budapest in September.

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 Seoul to Budapest in September from $680

Return flights