Cheapest return flights from Portland (PDX) to Keflavik (KEF), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Sep 07 Oct Air Canada
09 Sep 16 Sep Air Canada
28 Sep 05 Oct Air Canada
28 Sep 06 Oct Air Canada
29 Sep 07 Oct Air Canada
26 Sep 05 Oct Air Canada
27 Sep 05 Oct Air Canada
27 Sep 06 Oct Air Canada
29 Sep 08 Oct Air Canada
29 Sep 06 Oct Air Canada
22 Sep 01 Oct United
17 Sep 22 Sep Air Canada
16 Sep 23 Sep United
05 Sep 11 Sep Lufthansa
23 Sep 30 Sep Icelandair
Direct Flight
21 Sep 28 Sep Air France
05 Sep 09 Sep United
17 Sep 24 Sep Air France
19 Sep 26 Sep Air France
22 Sep 29 Sep KLM
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Updated Sep 3, 2026.

About these fares

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