Cheapest return flights from Bangkok to Keflavik in September from 1066€

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

Return flights

19 Sep - 01 Oct Finnair
19 Sep - 30 Sep Finnair
23 Sep - 01 Oct KLM
19 Sep - 02 Oct Finnair
20 Sep - 30 Sep Qatar Airways
20 Sep - 02 Oct Qatar Airways
20 Sep - 01 Oct Qatar Airways
20 Sep - 27 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.