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

Return flights

12 Dec - 20 Dec	KLM
14 Dec - 22 Dec	Delta
16 Dec - 27 Dec	Air France
23 Dec - 27 Dec	KLM
09 Dec - 29 Dec	Air France
10 Dec - 29 Dec	Air France
25 Dec - 09 Jan	Delta
08 Dec - 31 Dec	Delta
10 Dec - 10 Jan	Delta
16 Dec - 22 Dec	Air France
15 Dec - 31 Dec	Delta
07 Dec - 15 Dec	Air France
21 Dec - 21 Jan	KLM
29 Dec - 01 Jan	Delta
22 Dec - 01 Jan	Delta
22 Dec - 06 Jan	Delta
28 Dec - 08 Jan	Korean Air
29 Dec - 05 Jan	Air France
28 Dec - 05 Jan	KLM
10 Dec - 03 Jan	Air France

Also check the deals for one-way flights from Dallas 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 Dallas to Bangkok in December from 2049€

Return flights