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

Return flights

09 Mar - 26 Mar	easyJet
05 Mar - 08 Mar	Fly Play	direct
12 Mar - 15 Mar	Fly Play	direct
19 Mar - 22 Mar	Fly Play	direct
09 Mar - 12 Mar	Scandinavian Airlines	direct
06 Mar - 09 Mar	easyJet
17 Mar - 21 Mar	easyJet
21 Mar - 24 Mar	Scandinavian Airlines
20 Mar - 23 Mar	Scandinavian Airlines
24 Mar - 27 Mar	Scandinavian Airlines	direct
31 Mar - 07 Apr	Scandinavian Airlines
31 Mar - 03 Apr	Scandinavian Airlines	direct
27 Mar - 08 Apr	Ryanair

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Keflavik in March from $203

Return flights