AirHint found the following cheapest return flights from Brussels (BRU) to Keflavik (KEF) in April 2026 (see full year).

Return flights

13 Apr - 22 Apr	Ryanair
20 Apr - 29 Apr	Ryanair
16 Apr - 25 Apr	Ryanair
25 Apr - 28 Apr	Ryanair
20 Apr - 25 Apr	Ryanair
13 Apr - 18 Apr	Wizz Air
19 Apr - 24 Apr	Ryanair
15 Apr - 19 Apr	Ryanair
09 Apr - 16 Apr	Ryanair
23 Apr - 26 Apr	Ryanair
26 Apr - 05 May	Ryanair
27 Apr - 03 May	Ryanair
27 Apr - 08 May	Ryanair
29 Apr - 03 May	Ryanair
23 Apr - 03 May	Ryanair
27 Apr - 02 May	Scandinavian Airlines
20 Apr - 02 May	Scandinavian Airlines
23 Apr - 07 May	Scandinavian Airlines
12 Apr - 04 May	Scandinavian Airlines
11 Apr - 03 May	Ryanair

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

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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Cheapest return flights from Brussels to Keflavik in April from $177

Return flights