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

Return flights

13 Sep - 15 Sep	Air China
13 Sep - 22 Sep	Air China
11 Sep - 22 Sep	Air China
11 Sep - 18 Sep	Air China
14 Sep - 19 Sep	Air China
11 Sep - 21 Sep	Air China
14 Sep - 24 Oct	Air China
13 Sep - 21 Sep	Air China
16 Sep - 22 Sep	Lufthansa
15 Sep - 22 Sep	Lufthansa
09 Sep - 22 Sep	Lufthansa
04 Sep - 16 Oct	Air China
22 Sep - 23 Oct	Lufthansa
21 Sep - 23 Oct	Air China
23 Sep - 21 Oct	LOT
25 Sep - 04 Oct	Lufthansa
25 Sep - 02 Oct	Qatar Airways
25 Sep - 23 Oct	Lufthansa
24 Sep - 01 Oct	LOT
25 Sep - 03 Oct	Qatar Airways

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 $599

Return flights