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

Return flights

01 Jul - 15 Jul	Ryanair
12 Jul - 16 Jul	Ryanair
22 Jul - 29 Jul	Ryanair
08 Jul - 15 Jul	Ryanair
03 Jul - 09 Jul	SWISS
03 Jul - 08 Jul	SWISS
02 Jul - 09 Jul	SWISS
01 Jul - 09 Jul	Austrian Airlines
15 Jul - 23 Jul	Ryanair
26 Jul - 02 Aug	Ryanair
08 Jul - 22 Jul	Ryanair
31 Jul - 06 Aug	Fly Play
23 Jul - 11 Aug	Scandinavian Airlines
01 Jul - 31 Aug	Ryanair
27 Jul - 04 Aug	Scandinavian Airlines
29 Jul - 05 Aug	Fly Play	direct
28 Jul - 04 Aug	easyJet
23 Jul - 14 Aug	Ryanair
27 Jul - 03 Aug	Ryanair
22 Jul - 12 Aug	Fly Play	direct

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 $307

Return flights