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

Return flights

21 May - 28 May	KLM
21 May - 31 May	KLM
21 May - 02 Jun	KLM
19 May - 28 May	KLM
19 May - 26 May	KLM
20 May - 31 May	KLM
20 May - 29 May	KLM
19 May - 30 May	KLM
21 May - 01 Jun	KLM
20 May - 30 May	KLM
28 May - 04 Jun	KLM
28 May - 06 Jun	KLM
19 May - 24 May	Vietnam Airlines
16 May - 24 May	Oman Air
26 May - 07 Jun	KLM
19 May - 02 Jun	Vietnam Airlines
22 May - 02 Jun	KLM
29 May - 07 Jun	KLM
29 May - 06 Jun	KLM
23 May - 02 Jun	KLM

Also check the deals for one-way flights from Bangkok to Oslo 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 Bangkok to Oslo in May from $643

Return flights