Cheapest return LIS–KEF flights, October

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

Return flights

13 Oct - 20 Oct easyJet
21 Oct - 28 Oct Ryanair
31 Oct - 07 Nov easyJet
14 Oct - 21 Oct Ryanair
29 Oct - 05 Nov easyJet
08 Oct - 15 Oct Ryanair
28 Oct - 04 Nov easyJet
27 Oct - 03 Nov easyJet
30 Oct - 06 Nov TAP
26 Oct - 04 Nov Ryanair
15 Oct - 22 Oct KLM
11 Oct - 18 Oct Ryanair
26 Oct - 05 Nov Ryanair
12 Oct - 19 Oct Transavia France
07 Oct - 14 Oct easyJet
19 Oct - 26 Oct TAP
05 Oct - 12 Oct easyJet
26 Oct - 02 Nov easyJet
29 Oct - 01 Nov easyJet
29 Oct - 01 Nov Icelandair direct

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

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