AirHint found the following cheapest return flights from Chiang Rai (CEI) to Kuala Lumpur (KUL) in September 2025 (see full year).

Return flights

29 Sep - 06 Oct	Thai AirAsia
22 Sep - 06 Oct	Thai AirAsia
29 Sep - 12 Oct	Thai AirAsia
22 Sep - 12 Oct	Thai AirAsia
29 Sep - 05 Oct	Thai AirAsia
22 Sep - 05 Oct	Thai AirAsia
29 Sep - 19 Oct	Thai AirAsia
17 Sep - 06 Oct	Thai AirAsia
29 Sep - 20 Oct	Thai AirAsia
16 Sep - 06 Oct	Thai AirAsia
02 Sep - 11 Sep	Thai AirAsia
06 Sep - 11 Sep	Thai AirAsia
02 Sep - 14 Sep	Thai AirAsia
06 Sep - 14 Sep	Thai AirAsia
02 Sep - 12 Sep	Thai AirAsia
06 Sep - 12 Sep	Thai AirAsia
02 Sep - 13 Sep	Thai AirAsia
06 Sep - 13 Sep	Thai AirAsia

Also check the deals for one-way flights from Chiang Rai to Kuala Lumpur 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 Rai to Kuala Lumpur in September from 174€

Return flights