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

Return flights

24 Mar - 26 Mar	easyJet
03 Mar - 14 Mar	easyJet
08 Mar - 14 Mar	easyJet
16 Mar - 18 Mar	easyJet
04 Mar - 11 Mar	easyJet
03 Mar - 10 Mar	easyJet
03 Mar - 09 Mar	easyJet
11 Mar - 17 Mar	easyJet
11 Mar - 15 Mar	easyJet
07 Mar - 15 Mar	easyJet
27 Mar - 02 Apr	Scandinavian Airlines	direct
29 Mar - 01 Apr	Icelandair	direct
27 Mar - 11 Apr	Icelandair	direct
30 Mar - 05 Apr	Scandinavian Airlines
30 Mar - 02 Apr	Icelandair	direct
27 Mar - 05 Apr	easyJet
28 Mar - 05 Apr	easyJet
31 Mar - 03 Apr	Icelandair	direct

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 130€

Return flights