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

Return flights

11 Apr - 18 Apr	easyJet
08 Apr - 16 Apr	Scandinavian Airlines
09 Apr - 16 Apr	Scandinavian Airlines
20 Apr - 24 Apr	easyJet
06 Apr - 11 Apr	Scandinavian Airlines
23 Apr - 01 May	LOT
17 Apr - 24 Apr	ITA Airways
06 Apr - 20 Apr	Scandinavian Airlines
13 Apr - 20 Apr	Lufthansa	direct
13 Apr - 19 Apr	Lufthansa	direct
13 Apr - 18 Apr	Lufthansa
25 Apr - 02 May	Icelandair	direct
24 Apr - 03 May	Icelandair	direct
23 Apr - 01 May	Icelandair	direct

Also check the deals for one-way flights from Frankfurt to Keflavik in April.

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 April from 257€

Return flights