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

Return flights

13 Mar - 16 Mar	Ryanair
02 Mar - 05 Mar	Wizz Air
06 Mar - 19 Mar	Ryanair
10 Mar - 12 Mar	Ryanair
10 Mar - 14 Mar	Ryanair
17 Mar - 19 Mar	Ryanair
10 Mar - 15 Mar	Ryanair
09 Mar - 12 Mar	Wizz Air
13 Mar - 20 Mar	Ryanair
04 Mar - 07 Mar	Wizz Air
29 Mar - 09 Apr	Ryanair
26 Mar - 04 Apr	Ryanair
29 Mar - 05 Apr	Ryanair
30 Mar - 08 Apr	Wizz Air
30 Mar - 11 Apr	Wizz Air
28 Mar - 09 Apr	Ryanair
29 Mar - 03 Apr	Ryanair
13 Mar - 02 Apr	SWISS
14 Mar - 04 Apr	Ryanair
28 Mar - 04 Apr	Ryanair

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

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 March from $164

Return flights