Cheapest return flights from Seoul to Bangkok in December from 136€

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

Return flights

18 Dec - 31 Dec Vietnam Airlines
09 Dec - 18 Dec Vietnam Airlines
09 Dec - 13 Dec Vietnam Airlines
05 Dec - 09 Dec Vietnam Airlines
03 Dec - 07 Dec Vietnam Airlines
20 Dec - 08 Jan Thai AirAsia X direct
22 Dec - 12 Jan Thai AirAsia X direct
22 Dec - 08 Jan Thai AirAsia X direct
18 Dec - 08 Jan Thai AirAsia X direct
19 Dec - 08 Jan Thai AirAsia X direct
09 Dec - 13 Dec Thai AirAsia X direct
02 Dec - 10 Dec Thai AirAsia X direct
02 Dec - 17 Dec Thai AirAsia X direct
02 Dec - 11 Dec Thai AirAsia X direct
02 Dec - 19 Dec Thai AirAsia X direct
28 Dec - 26 Jan Thai AirAsia X direct
24 Dec - 12 Jan Thai AirAsia X direct
24 Dec - 13 Jan Thai AirAsia X direct
26 Dec - 12 Jan Thai AirAsia X direct
26 Dec - 13 Jan Thai AirAsia X direct

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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