Cheapest return flights from Portland to Keflavik in October from 399€

AirHint found the following cheapest return flights from Portland (PDX) to Keflavik (KEF) in October 2025 (see full year).

Return flights

05 Oct - 12 Oct Air France
12 Oct - 19 Oct Air France
13 Oct - 20 Oct Air France
06 Oct - 13 Oct Virgin Atlantic
09 Oct - 16 Oct Sun Country Airlines
02 Oct - 09 Oct Spirit Airlines
02 Oct - 08 Oct Icelandair direct
10 Oct - 17 Oct Delta
07 Oct - 14 Oct Spirit Airlines
01 Oct - 08 Oct Hawaiian Airlines

Also check the deals for one-way flights from Portland 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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