Cheapest return flights from Seattle to Keflavik in November from $589

Best time to book flights for Seattle (SEA) to Keflavik (KEF) flights at AirHint

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

Return flights

17 Nov - 24 Nov Hawaiian Airlines
10 Nov - 17 Nov Hawaiian Airlines
11 Nov - 18 Nov Hawaiian Airlines
04 Nov - 11 Nov Hawaiian Airlines
12 Nov - 20 Nov Alaska Airlines
01 Nov - 08 Nov Alaska Airlines
10 Nov - 20 Nov Alaska Airlines
09 Nov - 16 Nov Alaska Airlines
13 Nov - 20 Nov Alaska Airlines
07 Nov - 14 Nov Hawaiian Airlines
27 Nov - 04 Dec Hawaiian Airlines
26 Nov - 03 Dec Hawaiian Airlines
29 Nov - 06 Dec Lufthansa
28 Nov - 05 Dec Alaska Airlines
27 Nov - 04 Dec Icelandair direct
28 Nov - 05 Dec Icelandair direct
29 Nov - 06 Dec Icelandair direct
25 Nov - 02 Dec Icelandair direct
26 Nov - 03 Dec Icelandair direct
24 Nov - 01 Dec Icelandair direct

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

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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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