Cheapest return flights from Lisbon to Keflavik in May from $195

Best time to book flights for Lisbon (LIS) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Lisbon (LIS) to Keflavik (KEF) in May 2025 (see full year).

Return flights

23 May - 30 May Fly Play direct
16 May - 19 May Fly Play direct
20 May - 27 May easyJet
07 May - 12 May Ryanair
08 May - 12 May Ryanair
02 May - 05 May Fly Play direct
09 May - 16 May Fly Play direct
02 May - 09 May Fly Play direct
09 May - 12 May easyJet
08 May - 11 May Ryanair
28 May - 08 Jun easyJet
30 May - 02 Jun Fly Play direct
31 May - 14 Jun Ryanair

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

Skyscanner

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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