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

Return flights

24 Sep - 10 Oct	Thai AirAsia
22 Sep - 10 Oct	Thai AirAsia
22 Sep - 14 Oct	Thai AirAsia
22 Sep - 07 Oct	Thai AirAsia
24 Sep - 04 Oct	Thai AirAsia
14 Sep - 21 Sep	Thai Lion Air
10 Sep - 17 Sep	Thai AirAsia
09 Sep - 16 Sep	Thai Lion Air
21 Sep - 25 Sep	Thai AirAsia
11 Sep - 18 Sep	Thai Lion Air
10 Sep - 15 Sep	Thai AirAsia
07 Sep - 13 Sep	Thai Lion Air
21 Sep - 26 Sep	Thai AirAsia
20 Sep - 24 Sep	Thai AirAsia

Also check the deals for one-way flights from Bangkok to Muscat 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 Muscat in September from $320

Return flights