Cheapest return flights from Lisbon to Keflavik in October from 175€

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 October 2025 (see full year).

Return flights

14 Oct - 21 Oct easyJet
09 Oct - 14 Oct easyJet
07 Oct - 16 Oct easyJet
07 Oct - 15 Oct easyJet
09 Oct - 17 Oct easyJet
09 Oct - 18 Oct easyJet
14 Oct - 17 Oct easyJet
07 Oct - 17 Oct easyJet
14 Oct - 18 Oct easyJet
14 Oct - 24 Oct easyJet
30 Oct - 05 Nov easyJet
31 Oct - 06 Nov Fly Play
24 Oct - 02 Nov Ryanair

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

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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