AirHint found the following cheapest one-way flights from Hanoi (HAN) to Bangkok (DMK) in December 2025 (see full year).

One-Way flights

11 Dec	Thai AirAsia	direct
18 Dec	Thai AirAsia	direct
06 Dec	Thai AirAsia	direct
15 Dec	Thai AirAsia	direct
23 Dec	Thai AirAsia	direct
07 Dec	Thai AirAsia	direct
13 Dec	Thai AirAsia	direct
19 Dec	Thai AirAsia	direct
26 Dec	Thai AirAsia	direct
08 Dec	Thai AirAsia	direct

Also check the deals for return flights from Hanoi 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 one-way flights from Hanoi to Bangkok in December from $58

One-Way flights