Cheapest return flights from Lisbon to Keflavik in April from $261

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

Return flights

11 Apr - 15 Apr easyJet
10 Apr - 13 Apr easyJet
12 Apr - 16 Apr TAP
29 Apr - 03 May easyJet
05 Apr - 16 Apr transavia
20 Apr - 24 Apr TAP
26 Apr - 07 May easyJet
01 Apr - 05 Apr easyJet
15 Apr - 30 Apr easyJet
02 Apr - 12 Apr easyJet
06 Apr - 17 Apr easyJet
03 Apr - 06 Apr easyJet

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

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