Cheapest return flights from Lisbon to Keflavik in August from 221€

Best time to book flights for Lisbon (LIS) to Keflavik (KEF) flights at AirHint

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

Return flights

11 Aug - 15 Aug Fly Play direct
08 Aug - 15 Aug Fly Play direct
01 Aug - 08 Aug Fly Play direct
04 Aug - 11 Aug Fly Play direct
22 Aug - 29 Aug Fly Play direct
18 Aug - 25 Aug Fly Play direct
18 Aug - 22 Aug Fly Play direct
31 Aug - 07 Sep Iberia
31 Aug - 05 Sep Ryanair
20 Aug - 27 Aug Scandinavian Airlines
31 Aug - 31 Aug Scandinavian Airlines
31 Aug - 06 Sep easyJet
17 Aug - 28 Aug Icelandair direct
31 Aug - 07 Sep Icelandair direct
10 Aug - 07 Sep Icelandair direct
28 Aug - 01 Sep transavia
31 Aug - 14 Sep Vueling Airlines

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

Skyscanner

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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