Cheapest return flights from Lisbon to Keflavik in August from 294€

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

22 Aug - 29 Aug Fly Play direct
31 Aug - 05 Sep Scandinavian Airlines
29 Aug - 08 Sep Fly Play direct
16 Aug - 25 Aug Scandinavian Airlines
25 Aug - 28 Aug Scandinavian Airlines
18 Aug - 26 Aug Scandinavian Airlines
15 Aug - 24 Aug TAP
17 Aug - 25 Aug easyJet
24 Aug - 29 Aug easyJet
29 Aug - 04 Sep Ryanair
21 Aug - 24 Aug easyJet
17 Aug - 24 Aug easyJet
05 Aug - 12 Aug Ryanair
28 Aug - 01 Sep TAP direct
31 Aug - 05 Sep TAP direct
29 Aug - 04 Sep Fly Play direct

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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