Cheapest return flights from Bangkok to Keflavik in May from $816

Best time to book flights for Bangkok (BKK) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Bangkok (BKK) to Keflavik (KEF) in May 2025 (see full year).

Return flights

28 May - 07 Jun SWISS
16 May - 24 May SWISS
21 May - 11 Jun Finnair
09 May - 17 May SWISS
30 May - 07 Jun SWISS
30 May - 06 Jun Finnair
25 May - 01 Jun Finnair
01 May - 11 May Air India
30 May - 08 Jun Finnair
31 May - 06 Jun Finnair
31 May - 08 Jun Finnair
28 May - 08 Jun KLM
14 May - 18 May Finnair
04 May - 20 May Qatar Airways
07 May - 13 May Qatar Airways
04 May - 11 May Qatar Airways
02 May - 05 May Finnair

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

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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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