Cheapest return flights from Lisbon to Keflavik in April from $225

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

Return flights

23 Apr - 26 Apr easyJet
22 Apr - 29 Apr easyJet
22 Apr - 28 Apr easyJet
15 Apr - 22 Apr easyJet
21 Apr - 28 Apr easyJet
16 Apr - 21 Apr easyJet
13 Apr - 20 Apr Vueling Airlines
14 Apr - 21 Apr Vueling Airlines
17 Apr - 24 Apr easyJet
19 Apr - 26 Apr TAP
24 Apr - 01 May easyJet
29 Apr - 06 May easyJet
25 Apr - 02 May easyJet
26 Apr - 03 May TAP
30 Apr - 07 May Vueling Airlines
30 Apr - 03 May easyJet
28 Apr - 05 May easyJet
27 Apr - 04 May Transavia France
29 Apr - 03 May TAP
25 Apr - 09 May Vueling Airlines

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

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