Cheapest return flights from Keflavik to Lisbon in October from 291€

AirHint found the following cheapest return flights from Keflavik (KEF) to Lisbon (LIS) in October 2025 (see full year).

Return flights

28 Oct - 05 Nov easyJet
28 Oct - 04 Nov easyJet
26 Oct - 30 Oct Jet2
30 Oct - 06 Nov easyJet
30 Oct - 06 Nov Icelandair direct
26 Oct - 30 Oct TAP direct

Also check the deals for one-way flights from Keflavik to Lisbon 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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