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

Return flights

11 Apr - 14 Apr	easyJet
04 Apr - 13 Apr	Scandinavian Airlines
02 Apr - 12 Apr	Scandinavian Airlines
10 Apr - 13 Apr	Scandinavian Airlines
03 Apr - 13 Apr	Scandinavian Airlines
03 Apr - 12 Apr	Scandinavian Airlines
06 Apr - 17 Apr	Icelandair	direct
10 Apr - 13 Apr	Icelandair	direct
04 Apr - 13 Apr	Icelandair	direct
03 Apr - 13 Apr	Icelandair	direct

Also check the deals for one-way flights from Prague 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 Prague to Keflavik in April from 165€

Return flights