Cheapest return flights from Portland to Keflavik in April from $470

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

Return flights

11 Apr - 15 Apr Icelandair direct
07 Apr - 17 Apr Delta
14 Apr - 21 Apr Air France
13 Apr - 20 Apr Icelandair direct
20 Apr - 27 Apr Icelandair direct
11 Apr - 18 Apr Air France
15 Apr - 22 Apr KLM
18 Apr - 25 Apr Air France
24 Apr - 01 May Delta
27 Apr - 04 May Air France
09 Apr - 12 Apr Icelandair direct
27 Apr - 04 May Icelandair direct
22 Apr - 29 Apr Air France

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

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