AirHint found the following cheapest return flights from Bangkok (DMK) to Amsterdam (AMS) in September 2025 (see full year).

Return flights

30 Sep - 07 Oct	Thai AirAsia
29 Sep - 06 Oct	Thai AirAsia
17 Sep - 24 Sep	Thai AirAsia X
15 Sep - 22 Sep	Thai AirAsia X
22 Sep - 29 Sep	Nok Air
26 Sep - 03 Oct	Thai AirAsia
10 Sep - 17 Sep	Thai AirAsia
16 Sep - 23 Sep	Nok Air
24 Sep - 01 Oct	Thai AirAsia X
25 Sep - 02 Oct	Thai Lion Air
23 Sep - 30 Sep	Thai AirAsia
28 Sep - 05 Oct	Thai AirAsia
18 Sep - 07 Oct	Thai AirAsia
18 Sep - 25 Sep	Thai AirAsia
19 Sep - 26 Sep	Nok Air
13 Sep - 20 Sep	Thai Lion Air
08 Sep - 15 Sep	Thai AirAsia
27 Sep - 04 Oct	Thai AirAsia
23 Sep - 09 Oct	Thai Lion Air
14 Sep - 01 Oct	Thai AirAsia

Also check the deals for one-way flights from Bangkok to Amsterdam 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 Bangkok to Amsterdam in September from $619

Return flights