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

Return flights

24 Jul - 02 Aug	Ryanair
30 Jul - 10 Aug	Ryanair
31 Jul - 03 Aug	Ryanair
09 Jul - 16 Jul	SWISS
10 Jul - 17 Jul	Fly Play	direct
30 Jul - 04 Aug	Ryanair
23 Jul - 31 Jul	Ryanair
24 Jul - 29 Jul	Ryanair
30 Jul - 06 Aug	Scandinavian Airlines
24 Jul - 29 Jul	Fly Play	direct
24 Jul - 02 Aug	Fly Play	direct
26 Jul - 31 Jul	Ryanair
26 Jul - 02 Aug	Ryanair
25 Jul - 31 Jul	Ryanair
29 Jul - 03 Aug	Ryanair
17 Jul - 19 Jul	Fly Play	direct
17 Jul - 20 Jul	SWISS
15 Jul - 22 Jul	Wizz Air
29 Jul - 02 Aug	Fly Play	direct
26 Jul - 03 Aug	Ryanair

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

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 July from 270€

Return flights