Cheapest return flights from Portland to Keflavik in April from $688

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

Return flights

06 Apr - 13 Apr Icelandair direct
13 Apr - 20 Apr Icelandair direct
20 Apr - 27 Apr Icelandair direct
27 Apr - 04 May Icelandair direct
12 Apr - 19 Apr Icelandair
07 Apr - 14 Apr Icelandair
14 Apr - 21 Apr Icelandair
16 Apr - 23 Apr Icelandair
18 Apr - 25 Apr Icelandair
23 Apr - 30 Apr Icelandair
01 Apr - 08 Apr Icelandair
26 Apr - 03 May Alaska Airlines
24 Apr - 01 May Alaska Airlines
25 Apr - 02 May Icelandair

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

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