Cheapest return flights from Seoul to Bangkok in December from $169

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

Return flights

13 Dec - 19 Dec Vietnam Airlines
13 Dec - 18 Dec Vietnam Airlines
03 Dec - 10 Dec Vietnam Airlines
03 Dec - 06 Dec Vietnam Airlines
03 Dec - 08 Dec Vietnam Airlines
11 Dec - 18 Dec Vietnam Airlines
10 Dec - 14 Dec Vietnam Airlines
09 Dec - 16 Dec Vietnam Airlines
17 Dec - 24 Dec Vietnam Airlines
03 Dec - 07 Dec Vietnam Airlines
13 Dec - 04 Jan Vietnam Airlines
15 Dec - 02 Jan Vietnam Airlines
04 Dec - 01 Jan Vietnam Airlines
03 Dec - 07 Jan Vietnam Airlines
15 Dec - 14 Jan Vietnam Airlines
10 Dec - 07 Jan Vietnam Airlines
16 Dec - 03 Jan Vietnam Airlines
15 Dec - 31 Jan Vietnam Airlines
06 Dec - 08 Jan Vietnam Airlines
09 Dec - 09 Jan Vietnam Airlines

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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