Cheapest return flights from Portland to Keflavik in June from $668

Best time to book flights for Portland (PDX) to Keflavik (KEF) flights at AirHint

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

Return flights

27 Jun - 08 Jul Air France
08 Jun - 15 Jun Air France
09 Jun - 17 Jun Delta
12 Jun - 20 Jun Delta
09 Jun - 17 Jun Icelandair direct
08 Jun - 25 Jun Icelandair direct
17 Jun - 22 Jun Spirit Airlines
12 Jun - 20 Jun Icelandair direct

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

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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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