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

Return flights

14 Apr - 21 Apr	Ryanair
13 Apr - 18 Apr	Ryanair
20 Apr - 26 Apr	Ryanair
29 Apr - 05 May	Ryanair
17 Apr - 28 Apr	Ryanair
14 Apr - 19 Apr	Ryanair
28 Apr - 05 May	easyJet
15 Apr - 28 May	Ryanair
19 Apr - 28 Apr	Ryanair
08 Apr - 14 Apr	Ryanair
29 Apr - 07 May	Ryanair
14 Apr - 21 Apr	Icelandair	direct
23 Apr - 29 Apr	Ryanair
14 Apr - 19 Apr	Icelandair	direct
25 Apr - 01 May	Ryanair
29 Apr - 09 May	Lufthansa
30 Apr - 09 May	Icelandair	direct
30 Apr - 04 May	Icelandair	direct
30 Apr - 03 May	Icelandair	direct
30 Apr - 10 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 163€

Return flights