Cheapest return flights from Seoul to Bangkok in December from $111

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

Return flights

12 Dec - 16 Dec Thai VietJet Air direct
15 Dec - 18 Dec Vietnam Airlines
16 Dec - 20 Dec Vietnam Airlines
05 Dec - 08 Dec Vietnam Airlines
01 Dec - 06 Dec Vietnam Airlines
01 Dec - 08 Dec Vietnam Airlines
01 Dec - 04 Dec Vietnam Airlines
17 Dec - 21 Dec Vietnam Airlines
08 Dec - 22 Dec Vietnam Airlines
10 Dec - 15 Dec Vietnam Airlines
24 Dec - 14 Jan Thai AirAsia X direct
16 Dec - 06 Jan China Southern
17 Dec - 28 Jan China Southern
06 Dec - 03 Jan China Southern
18 Dec - 08 Jan China Southern
09 Dec - 07 Jan China Southern
09 Dec - 08 Jan China Southern
12 Dec - 12 Jan China Southern
03 Dec - 20 Jan China Southern
09 Dec - 16 Jan China Southern

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

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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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