Cheapest return flights from Brussels to Keflavik in September from $247

Best time to book flights for Brussels (BRU) to Keflavik (KEF) flights at AirHint

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

Return flights

08 Sep - 14 Sep Scandinavian Airlines
17 Sep - 24 Sep Ryanair
21 Sep - 24 Sep easyJet
21 Sep - 01 Oct easyJet
23 Sep - 27 Sep Ryanair
12 Sep - 21 Sep Ryanair
14 Sep - 28 Sep easyJet
23 Sep - 26 Sep Ryanair
21 Sep - 01 Oct Icelandair direct
18 Sep - 01 Oct Icelandair direct
22 Sep - 05 Oct Icelandair direct
14 Sep - 22 Sep Scandinavian Airlines
13 Sep - 19 Sep Icelandair direct
17 Sep - 24 Sep Icelandair direct
27 Sep - 11 Oct Scandinavian Airlines

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.

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