Cheapest return flights from Lisbon to Keflavik in October from $224

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

20 Oct - 27 Oct Vueling Airlines
13 Oct - 17 Oct Fly Play direct
31 Oct - 06 Nov Fly Play
27 Oct - 31 Oct Fly Play direct
10 Oct - 17 Oct Transavia France
14 Oct - 22 Oct easyJet
06 Oct - 10 Oct Fly Play direct
02 Oct - 09 Oct Vueling Airlines
31 Oct - 09 Nov Fly Play
16 Oct - 23 Oct Transavia France
30 Oct - 03 Nov easyJet
18 Oct - 26 Oct easyJet
06 Oct - 11 Oct Fly Play

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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