Cheapest one-way flights from Keflavik to Lisbon in August from $145

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

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

One-Way flights

06 Aug Scandinavian Airlines
14 Aug Scandinavian Airlines
18 Aug Fly Play direct
04 Aug Scandinavian Airlines
04 Aug Fly Play direct
05 Aug Fly Play
25 Aug Transavia France
07 Aug Fly Play
25 Aug Fly Play direct
14 Aug TAP direct

Also check the deals for return flights from Keflavik to Lisbon 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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