Cheapest return flights from Porto to Keflavik in October from $224

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
23 Oct - 27 Oct Fly Play
03 Oct - 14 Oct Ryanair
22 Oct - 26 Oct easyJet
09 Oct - 19 Oct Fly Play direct
12 Oct - 19 Oct Fly Play direct
08 Oct - 15 Oct easyJet
02 Oct - 13 Oct Ryanair
09 Oct - 16 Oct Ryanair
01 Oct - 12 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.

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