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

Return flights

09 Mar - 16 Mar	Ryanair
09 Mar - 14 Mar	Ryanair
02 Mar - 16 Mar	Ryanair
13 Mar - 16 Mar	Ryanair
02 Mar - 09 Mar	Ryanair
16 Mar - 20 Mar	Ryanair
06 Mar - 14 Mar	Ryanair
16 Mar - 23 Mar	Ryanair
01 Mar - 06 Mar	Ryanair
02 Mar - 08 Mar	Ryanair
24 Mar - 01 Apr	Ryanair
20 Mar - 01 Apr	Scandinavian Airlines
09 Mar - 13 Apr	Scandinavian Airlines
21 Mar - 01 Apr	easyJet
31 Mar - 09 Apr	Ryanair
28 Mar - 09 Apr	Ryanair
26 Mar - 04 Apr	Scandinavian Airlines
24 Mar - 01 Apr	Icelandair	direct
21 Mar - 01 Apr	Icelandair	direct
20 Mar - 01 Apr	Icelandair	direct

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Keflavik in March from 200€

Return flights