Cheapest return flights from Keflavik to Brussels in September from $279

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

Return flights

28 Sep - 01 Oct easyJet
29 Sep - 01 Oct Fly Play
28 Sep - 30 Sep Fly Play
28 Sep - 29 Sep Fly Play
28 Sep - 01 Oct Icelandair direct
28 Sep - 29 Sep Icelandair direct
29 Sep - 01 Oct Icelandair direct

Also check the deals for one-way flights from Keflavik to Brussels 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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