Cheapest return flights from Porto to Keflavik in December from 199€

Best time to book flights for Porto (OPO) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Porto (OPO) to Keflavik (KEF) in December 2025 (see full year).

Return flights

13 Dec - 17 Dec easyJet
05 Dec - 08 Dec easyJet
09 Dec - 13 Dec Ryanair
01 Dec - 08 Dec easyJet
12 Dec - 14 Dec easyJet
09 Dec - 14 Dec Ryanair
21 Dec - 30 Dec easyJet
13 Dec - 16 Dec easyJet
11 Dec - 15 Dec Ryanair
20 Dec - 30 Dec Vueling Airlines
29 Dec - 03 Jan Ryanair
26 Dec - 03 Jan Ryanair

Also check the deals for one-way flights from Porto to Keflavik in December.

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