Cheapest return flights from Oslo to Bangkok in September from $569

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

Return flights

10 Sep - 25 Sep Lufthansa
13 Sep - 25 Sep Lufthansa
05 Sep - 31 Oct Hainan Airlines
08 Sep - 22 Sep SWISS
01 Sep - 30 Sep Austrian Airlines
01 Sep - 22 Sep Austrian Airlines
10 Sep - 21 Sep Lufthansa
12 Sep - 21 Sep Lufthansa
13 Sep - 21 Sep Wideroe
15 Sep - 28 Sep Finnair
15 Sep - 29 Sep Finnair
16 Sep - 01 Oct Finnair
13 Sep - 06 Oct Lufthansa
21 Sep - 17 Oct Thai Airways direct
16 Sep - 01 Oct Thai Airways direct
05 Sep - 31 Oct Thai Airways direct

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

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