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

Return flights

27 Jul - 31 Jul	Lufthansa
27 Jul - 30 Jul	Lufthansa
28 Jul - 30 Jul	SWISS
28 Jul - 31 Jul	SWISS
30 Jul - 01 Aug	SWISS
28 Jul - 01 Aug	SWISS
28 Jul - 03 Aug	SWISS
30 Jul - 06 Aug	SWISS
30 Jul - 20 Aug	Ryanair
31 Jul - 05 Aug	Fly Play	direct
27 Jul - 29 Jul	Lufthansa
31 Jul - 02 Aug	Fly Play	direct
31 Jul - 07 Aug	Fly Play	direct
30 Jul - 04 Aug	SWISS
28 Jul - 04 Aug	SWISS
29 Jul - 31 Jul	Scandinavian Airlines
29 Jul - 30 Jul	Lufthansa
31 Jul - 31 Jul	Finnair
29 Jul - 31 Jul	Fly Play	direct
30 Jul - 30 Jul	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 325€

Return flights