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

Return flights

19 May - 26 May	Finnair
13 May - 26 May	Finnair
15 May - 25 May	Finnair
18 May - 24 May	Finnair
04 May - 31 May	Finnair
30 May - 08 Jun	Lufthansa
09 May - 30 May	Turkish Airlines
13 May - 26 May	Thai Airways	direct
18 May - 24 May	Thai Airways	direct
04 May - 31 May	Thai Airways	direct
09 May - 30 May	Thai Airways	direct
30 May - 08 Jun	Thai Airways	direct

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 509€

Return flights