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

Return flights

15 Sep - 22 Sep	China Eastern
14 Sep - 22 Sep	Air China
14 Sep - 21 Sep	Air China
11 Sep - 15 Sep	Air China
14 Sep - 19 Sep	Air China
07 Sep - 18 Sep	Air China
06 Sep - 12 Sep	Air China
03 Sep - 07 Sep	Air China
07 Sep - 19 Sep	Air China
04 Sep - 12 Sep	Air China
24 Sep - 06 Oct	Air China
29 Sep - 14 Oct	Japan Airlines
26 Sep - 05 Oct	Japan Airlines
04 Sep - 29 Oct	Japan Airlines
24 Sep - 01 Oct	Japan Airlines
27 Sep - 05 Oct	Air China
28 Sep - 06 Oct	Air China
29 Sep - 07 Oct	Japan Airlines
29 Sep - 09 Oct	Japan Airlines
25 Sep - 07 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 $554

Return flights