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

Return flights

17 Jul - 22 Jul	SWISS
31 Jul - 13 Aug	Wizz Air
29 Jul - 06 Aug	Wizz Air
15 Jul - 13 Aug	Ryanair
29 Jul - 12 Aug	Wizz Air
27 Jul - 09 Aug	Scandinavian Airlines
16 Jul - 22 Jul	SWISS
14 Jul - 22 Jul	SWISS
29 Jul - 13 Aug	Ryanair
31 Jul - 06 Aug	Wizz Air
26 Jul - 03 Aug	Ryanair
23 Jul - 11 Aug	Ryanair
23 Jul - 30 Jul	Scandinavian Airlines
25 Jul - 27 Jul	Icelandair	direct
17 Jul - 23 Jul	Icelandair	direct
16 Jul - 22 Jul	Icelandair	direct
30 Jul - 06 Aug	airBaltic
10 Jul - 15 Jul	SWISS
10 Jul - 16 Jul	SWISS
16 Jul - 23 Jul	Icelandair	direct

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Keflavik in July from 264€

Return flights