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

Return flights

23 Sep - 30 Sep	Thai AirAsia
27 Sep - 30 Sep	AirAsia
28 Sep - 30 Sep	AirAsia
23 Sep - 24 Sep	Thai AirAsia
24 Sep - 30 Sep	AirAsia
19 Sep - 30 Sep	AirAsia
27 Sep - 29 Sep	AirAsia
28 Sep - 29 Sep	AirAsia
24 Sep - 29 Sep	AirAsia
19 Sep - 29 Sep	AirAsia
30 Sep - 06 Oct	Thai AirAsia
30 Sep - 20 Oct	Thai AirAsia
30 Sep - 16 Oct	Thai AirAsia
30 Sep - 19 Oct	Thai AirAsia
30 Sep - 04 Oct	Thai AirAsia
30 Sep - 17 Oct	Thai AirAsia
30 Sep - 09 Oct	Thai AirAsia
30 Sep - 03 Oct	Thai AirAsia
27 Sep - 06 Oct	AirAsia
28 Sep - 06 Oct	AirAsia

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

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 Chiang Mai to Manila in September from 215€

Return flights