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

Return flights

15 Dec - 08 Jan	Vietnam Airlines
06 Dec - 11 Dec	HK Express
03 Dec - 09 Dec	HK Express
03 Dec - 07 Dec	VietJet Air
03 Dec - 08 Dec	VietJet Air
13 Dec - 16 Dec	HK Express
06 Dec - 10 Dec	VietJet Air
12 Dec - 16 Dec	HK Express
03 Dec - 15 Dec	VietJet Air
04 Dec - 11 Dec	VietJet Air
06 Dec - 14 Dec	HK Express
16 Dec - 07 Jan	HK Express
18 Dec - 09 Jan	China Airlines
18 Dec - 11 Jan	China Airlines
15 Dec - 19 Jan	China Airlines
23 Dec - 14 Jan	VietJet Air
16 Dec - 07 Jan	Jeju Air	direct
22 Dec - 01 Jan	Jin Air	direct
15 Dec - 01 Jan	Jin Air	direct
31 Dec - 10 Jan	VietJet Air

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

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 Busan to Bangkok in December from 144€

Return flights