Cheapest return flights from Porto to Keflavik in October from 182€

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 October 2025 (see full year).

Return flights

16 Oct - 19 Oct Fly Play direct
16 Oct - 23 Oct Fly Play direct
27 Oct - 03 Nov easyJet
12 Oct - 19 Oct Fly Play direct
02 Oct - 09 Oct Fly Play direct
13 Oct - 20 Oct Ryanair
31 Oct - 02 Nov easyJet
09 Oct - 14 Oct Ryanair
16 Oct - 20 Oct Fly Play
30 Oct - 02 Nov easyJet
16 Oct - 22 Oct easyJet
19 Oct - 23 Oct Fly Play direct
12 Oct - 16 Oct Ryanair

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

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