Cheapest return flights from Bangkok to Seoul in September from 126€

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

Return flights

25 Sep - 11 Oct Eastar Jet direct
25 Sep - 13 Oct Eastar Jet direct
24 Sep - 11 Oct Eastar Jet direct
24 Sep - 13 Oct Eastar Jet direct
26 Sep - 11 Oct Eastar Jet direct
26 Sep - 13 Oct Eastar Jet direct
28 Sep - 11 Oct Eastar Jet direct
28 Sep - 13 Oct Eastar Jet direct
29 Sep - 11 Oct Eastar Jet direct
29 Sep - 13 Oct Eastar Jet direct
18 Sep - 23 Sep Jeju Air direct
19 Sep - 23 Sep Jeju Air direct
21 Sep - 23 Sep Thai AirAsia X direct
18 Sep - 20 Sep Jeju Air direct
21 Sep - 24 Sep Thai AirAsia X direct
21 Sep - 21 Sep Thai AirAsia X direct
21 Sep - 28 Sep Thai AirAsia X direct
25 Sep - 26 Sep Eastar Jet direct
25 Sep - 27 Sep Eastar Jet direct
24 Sep - 26 Sep Eastar Jet direct

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

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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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