Cheapest return flights from Portland to Keflavik in October from 593€

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

Return flights

22 Oct - 01 Nov Icelandair direct
21 Oct - 31 Oct Icelandair

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

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