Cheapest return LIS–KEF flights, June

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

Return flights

16 Jun - 23 Jun Ryanair
09 Jun - 16 Jun Ryanair
20 Jun - 27 Jun easyJet
03 Jun - 09 Jun Ryanair
06 Jun - 13 Jun easyJet
04 Jun - 12 Jun Ryanair
04 Jun - 13 Jun Ryanair
18 Jun - 25 Jun Ryanair
11 Jun - 18 Jun Ryanair
10 Jun - 21 Jun Ryanair
27 Jun - 04 Jul Ryanair
24 Jun - 01 Jul Ryanair
29 Jun - 06 Jul Ryanair
29 Jun - 30 Jul Ryanair
25 Jun - 02 Jul Ryanair
26 Jun - 03 Jul easyJet
28 Jun - 30 Jul Ryanair
30 Jun - 29 Jul Vueling Airlines
30 Jun - 07 Jul Ryanair
30 Jun - 30 Jul Ryanair

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

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