Cheapest return flights from Oslo to Bangkok in September from $604

AirHint found the following cheapest return flights from Oslo (OSL) to Bangkok (BKK) in September 2026 (see full year).

Return flights

06 Sep - 18 Sep Austrian Airlines
07 Sep - 18 Sep SWISS
15 Sep - 30 Sep SWISS
07 Sep - 21 Sep SWISS
01 Sep - 30 Sep Austrian Airlines
02 Sep - 23 Sep Austrian Airlines
24 Sep - 05 Oct Hainan Airlines
24 Sep - 08 Oct Hainan Airlines
03 Sep - 17 Sep Austrian Airlines
13 Sep - 20 Sep Finnair
01 Sep - 19 Sep Finnair
01 Sep - 15 Sep Finnair
24 Sep - 05 Oct Thai Airways direct
26 Sep - 04 Oct Finnair
28 Sep - 03 Oct Finnair
24 Sep - 08 Oct Thai Airways direct
26 Sep - 04 Oct Thai Airways direct
28 Sep - 03 Oct Thai Airways direct
20 Sep - 16 Oct Scandinavian Airlines

Also check the deals for one-way flights from Oslo to Bangkok in September.

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