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

Return flights

03 Feb - 10 Feb	easyJet
04 Feb - 09 Feb	Ryanair
06 Feb - 09 Feb	Ryanair
10 Feb - 16 Feb	easyJet
11 Feb - 24 Feb	easyJet
20 Feb - 24 Feb	easyJet
06 Feb - 10 Feb	easyJet
19 Feb - 26 Feb	easyJet
05 Feb - 10 Feb	easyJet
03 Feb - 08 Feb	easyJet
04 Feb - 08 Mar	easyJet
28 Feb - 04 Mar	easyJet
26 Feb - 05 Mar	easyJet
01 Feb - 05 Mar	Scandinavian Airlines
01 Feb - 05 Mar	Icelandair	direct
26 Feb - 05 Mar	Icelandair	direct

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

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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Cheapest return flights from Lisbon to Keflavik in February from 164€

Return flights