AirHint found the following cheapest return flights from Stockholm (ARN) to Bangkok (BKK) in September 2025 (see full year).

Return flights

24 Sep - 23 Oct	AJet
23 Sep - 23 Oct	Ryanair
25 Sep - 23 Oct	Pegasus Airlines
30 Sep - 28 Oct	Pegasus Airlines
29 Sep - 26 Oct	Pegasus Airlines
30 Sep - 23 Oct	Norwegian Air Sweden AOC
29 Sep - 29 Oct	Pegasus Airlines
29 Sep - 06 Oct	Pegasus Airlines
23 Sep - 13 Oct	Ryanair
23 Sep - 31 Oct	AJet
23 Sep - 30 Sep	Ryanair
20 Sep - 30 Sep	AJet
18 Sep - 30 Sep	AJet
20 Sep - 29 Sep	AJet
22 Sep - 29 Sep	AJet
25 Sep - 30 Sep	Pegasus Airlines
23 Sep - 24 Sep	Qatar Airways
21 Sep - 27 Sep	AJet
20 Sep - 28 Sep	AJet
21 Sep - 28 Sep	AJet

Also check the deals for one-way flights from Stockholm to Bangkok 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 Stockholm to Bangkok in September from 351€

Return flights