Cheapest return flights from Oslo to Bangkok in September from $545

Best time to book flights for Oslo (OSL) to Bangkok (BKK) flights at AirHint

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

Return flights

10 Sep - 20 Sep Finnair
09 Sep - 23 Sep Finnair
10 Sep - 24 Sep Finnair
10 Sep - 25 Sep Finnair
10 Sep - 23 Sep Finnair
02 Sep - 11 Sep Finnair
02 Sep - 20 Sep Finnair
09 Sep - 18 Sep Finnair
12 Sep - 27 Sep Finnair
05 Sep - 26 Sep Finnair
23 Sep - 14 Oct Finnair
03 Sep - 04 Oct Finnair
02 Sep - 31 Oct Finnair
01 Sep - 01 Oct Finnair
08 Sep - 13 Oct Finnair
15 Sep - 17 Oct Finnair
22 Sep - 14 Oct Finnair
20 Sep - 10 Oct Finnair
25 Sep - 31 Oct Finnair
18 Sep - 10 Oct Finnair

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

Skyscanner

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok