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Cheapest one-way flights from Lisbon (lis) to Keflavik (KEF), December

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Dates, airline, and price
Dates	Airline	Price
14 Dec	easyJet
15 Dec	easyJet
13 Dec	easyJet
03 Dec	easyJet
30 Dec	Vueling Airlines
13 Dec	Icelandair Direct Flight
03 Dec	Icelandair Direct Flight

deals for return flights from Lisbon to Keflavik in December.

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Updated Aug 25, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Lisbon (lis) to Keflavik (KEF), December

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