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

Return flights

13 May - 25 May	Qatar Airways
13 May - 26 May	Finnair
14 May - 28 May	Qatar Airways
23 May - 30 May	Finnair
15 May - 31 May	Finnair
15 May - 31 May	Thai Airways	direct
14 May - 28 May	Thai Airways	direct
23 May - 30 May	Thai Airways	direct
12 May - 22 May	SWISS
12 May - 19 Jun	China Eastern

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 481€

Return flights