Cheapest return flights from Bangkok to Keflavik in September from 885€

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

15 Sep - 30 Sep SWISS
27 Sep - 12 Oct Finnair
13 Sep - 20 Sep 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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