Cheapest return flights from Lisbon to Keflavik in May from 208€

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

Return flights

07 May - 10 May Ryanair
05 May - 10 May Ryanair
01 May - 05 May Scandinavian Airlines
13 May - 20 May Ryanair
07 May - 11 May Ryanair
14 May - 17 May Ryanair
13 May - 18 May Wizz Air
19 May - 23 May Ryanair
14 May - 18 May Ryanair
12 May - 16 May Ryanair
29 May - 07 Jun Ryanair
31 May - 04 Jun easyJet
30 May - 17 Jun Vueling Airlines

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

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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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