Cheapest return flights from Lisbon to Keflavik in May from 156€

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

09 May - 19 May Fly Play direct
09 May - 12 May Fly Play direct
09 May - 16 May Fly Play direct
02 May - 16 May Fly Play direct
05 May - 12 May Fly Play direct
02 May - 09 May Fly Play direct
13 May - 21 May easyJet
12 May - 16 May Fly Play direct
14 May - 21 May Ryanair
13 May - 19 May Ryanair
30 May - 10 Jun Fly Play
23 May - 01 Jun Fly Play
29 May - 09 Jun Ryanair
30 May - 06 Jun easyJet
26 May - 02 Jun TAP
26 May - 02 Jun Fly Play direct
25 May - 03 Jun easyJet
29 May - 01 Jun Ryanair
25 May - 01 Jun easyJet
29 May - 10 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik