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

Return flights

06 May - 21 May	Lufthansa
13 May - 20 May	Lufthansa
06 May - 20 May	Finnair
29 May - 26 Jun	Lufthansa
01 May - 31 May	Finnair
01 May - 22 May	Finnair
09 May - 24 May	Finnair
19 May - 30 Jun	Lufthansa
01 May - 08 May	Lufthansa
10 May - 23 May	Lufthansa
04 May - 23 May	Finnair
04 May - 24 May	Finnair
30 May - 27 Jun	Thai Airways	direct
29 May - 26 Jun	Thai Airways	direct
19 May - 30 Jun	Thai Airways	direct
20 May - 08 Jun	Scandinavian Airlines

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

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 Oslo to Bangkok in May from 494€

Return flights