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

One-Way flights

02 Dec	Thai AirAsia	direct
13 Dec	Thai AirAsia	direct
14 Dec	Thai AirAsia	direct
12 Dec	Thai AirAsia	direct
23 Dec	Nok Air
20 Dec	Nok Air
19 Dec	Nok Air
18 Dec	Nok Air
05 Dec	Nok Air
11 Dec	Thai VietJet Air

Also check the deals for return flights from Chiang Mai to Hanoi 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 Chiang Mai to Hanoi in December from 66€

One-Way flights