Cheapest return flights from Chiang Mai to Hanoi in September from $141

AirHint found the following cheapest return flights from Chiang Mai (CNX) to Hanoi (HAN) in September 2025 (see full year).

Return flights

11 Sep - 30 Sep Thai VietJet Air
15 Sep - 26 Sep Thai AirAsia direct
15 Sep - 03 Oct Thai AirAsia direct
15 Sep - 19 Sep Thai AirAsia direct
15 Sep - 21 Sep Thai AirAsia direct
22 Sep - 26 Sep Thai AirAsia direct
14 Sep - 26 Sep Thai AirAsia direct
22 Sep - 03 Oct Thai AirAsia direct
14 Sep - 03 Oct Thai AirAsia direct
10 Sep - 14 Sep Thai VietJet Air
14 Sep - 19 Sep Thai AirAsia direct
15 Sep - 17 Sep Thai AirAsia direct
28 Sep - 03 Oct Thai AirAsia direct
29 Sep - 03 Oct Thai AirAsia direct
01 Sep - 08 Sep Thai AirAsia direct
25 Sep - 01 Oct Thai VietJet Air
15 Sep - 01 Oct Thai AirAsia direct
17 Sep - 03 Oct Thai AirAsia direct
22 Sep - 01 Oct Thai AirAsia direct
14 Sep - 01 Oct Thai AirAsia direct

Also check the deals for one-way flights from Chiang Mai to Hanoi in September.

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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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