AirHint found the following cheapest return flights from Porto (OPO) to Keflavik (KEF) in October 2026 (see full year).
Return flights
| 01 Oct - 05 Oct | KLM | ||
| 03 Oct - 10 Oct | Transavia France | ||
| 06 Oct - 13 Oct | easyJet | ||
| 06 Oct - 15 Oct | easyJet | ||
| 23 Oct - 28 Oct | Vueling Airlines | ||
| 23 Oct - 25 Oct | Lufthansa |
Also check the deals for one-way flights from Porto to Keflavik in October.
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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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