Cheapest return LIS–KEF flights, August

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

Return flights

27 Aug - 06 Sep Ryanair
12 Aug - 22 Aug Ryanair
23 Aug - 05 Sep easyJet
26 Aug - 02 Sep Norwegian
27 Aug - 03 Sep KLM
13 Aug - 23 Aug Vueling Airlines
25 Aug - 01 Sep easyJet
13 Aug - 30 Aug Vueling Airlines
20 Aug - 30 Aug Ryanair
30 Aug - 06 Sep easyJet
23 Aug - 06 Sep TAP
23 Aug - 04 Sep easyJet
18 Aug - 25 Aug Ryanair
23 Aug - 30 Aug KLM
31 Aug - 07 Sep Wizz Air
27 Aug - 06 Sep Icelandair direct
02 Aug - 12 Aug TAP
20 Aug - 27 Aug easyJet
01 Aug - 11 Aug Ryanair
13 Aug - 18 Aug easyJet

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

Powered by

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.