Cheapest return flights from Brussels to Keflavik in September from $212

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

07 Sep - 14 Sep Scandinavian Airlines
15 Sep - 21 Sep Scandinavian Airlines
01 Sep - 08 Sep Scandinavian Airlines
08 Sep - 13 Sep Scandinavian Airlines
10 Sep - 24 Sep Scandinavian Airlines
08 Sep - 14 Sep Scandinavian Airlines
03 Sep - 18 Sep Ryanair
15 Sep - 22 Sep Ryanair
12 Sep - 19 Sep Scandinavian Airlines
04 Sep - 11 Sep Aer Lingus
25 Sep - 05 Oct Scandinavian Airlines
24 Sep - 04 Oct Ryanair
25 Sep - 05 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.

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