Cheapest return flights from Keflavik to Lisbon in January from $158

AirHint found the following cheapest return flights from Keflavik (KEF) to Lisbon (LIS) in January 2026 (see full year).

Return flights

23 Jan - 25 Jan easyJet
22 Jan - 25 Jan easyJet
15 Jan - 22 Jan easyJet
26 Jan - 04 Feb easyJet
09 Jan - 16 Jan easyJet
08 Jan - 15 Jan easyJet
01 Jan - 08 Jan Wizz Air
22 Jan - 25 Jan Icelandair direct
08 Jan - 15 Jan Icelandair direct
04 Jan - 08 Jan Wizz Air
01 Jan - 08 Jan Icelandair direct

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

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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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