Cheapest return flights from Lisbon to Keflavik in May from 250€

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

24 May - 28 May easyJet
20 May - 29 May easyJet
15 May - 19 May Ryanair
10 May - 21 May easyJet
13 May - 25 May TAP
20 May - 27 May easyJet
30 May - 09 Jun TAP
19 May - 26 May easyJet
30 May - 09 Jun Fly Play direct
10 May - 24 May easyJet
15 May - 19 May TAP direct

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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