Cheapest one-way flights from Portland to Keflavik in May from $487

AirHint found the following cheapest one-way flights from Portland (PDX) to Keflavik (KEF) in May 2026 (see full year).

One-Way flights

09 May Icelandair direct
04 May Icelandair direct
04 May Air France

Also check the deals for return flights from Portland to Keflavik in May.

Powered by

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.