AirHint found the following cheapest return flights from Lisbon (LIS) to Keflavik (KEF) in November 2025 (see full year).

Return flights

12 Nov - 18 Nov	easyJet
21 Nov - 24 Nov	Fly Play	direct
21 Nov - 28 Nov	Fly Play	direct
14 Nov - 17 Nov	Fly Play	direct
17 Nov - 21 Nov	easyJet
12 Nov - 17 Nov	easyJet
12 Nov - 14 Nov	easyJet
19 Nov - 22 Nov	easyJet
10 Nov - 17 Nov	Fly Play	direct
17 Nov - 24 Nov	Fly Play	direct
29 Nov - 05 Dec	easyJet
24 Nov - 01 Dec	Fly Play	direct
30 Nov - 05 Dec	easyJet
28 Nov - 05 Dec	easyJet
29 Nov - 07 Dec	Ryanair
28 Nov - 04 Dec	Ryanair
26 Nov - 01 Dec	Ryanair
27 Nov - 01 Dec	Ryanair
28 Nov - 03 Dec	Ryanair
28 Nov - 01 Dec	Ryanair

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

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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Cheapest return flights from Lisbon to Keflavik in November from $165

Return flights