Cheapest return flights from Brussels to Keflavik in September from 178€

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

Return flights

13 Sep - 02 Oct Ryanair
04 Sep - 11 Sep Scandinavian Airlines
13 Sep - 20 Sep Ryanair
01 Sep - 06 Sep Wizz Air
04 Sep - 13 Sep Scandinavian Airlines
03 Sep - 10 Sep Ryanair
04 Sep - 18 Sep Ryanair
02 Sep - 09 Sep Ryanair
01 Sep - 07 Sep Wizz Air
10 Sep - 15 Sep SWISS
26 Sep - 29 Sep Ryanair
30 Sep - 05 Oct Ryanair
28 Sep - 09 Oct Ryanair
28 Sep - 09 Oct Icelandair direct

Also check the deals for one-way flights from Brussels 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.