Cheapest return flights from Bangkok to Keflavik in September from 903€

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 September 2025 (see full year).

Return flights

03 Sep - 10 Sep Finnair
19 Sep - 27 Sep Finnair
25 Sep - 06 Oct Finnair
19 Sep - 26 Sep Finnair
22 Sep - 01 Oct Finnair
04 Sep - 15 Sep Finnair
27 Sep - 06 Oct Finnair
19 Sep - 29 Sep Finnair
18 Sep - 30 Sep Finnair
19 Sep - 28 Sep Finnair
05 Sep - 15 Sep Finnair
27 Sep - 04 Oct Finnair
27 Sep - 11 Oct Finnair

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

Skyscanner

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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