Cheapest return flights from Phoenix to Keflavik in May from 628€

AirHint found the following cheapest return flights from Phoenix (PHX) to Keflavik (KEF) in May 2026 (see full year).

Return flights

23 May - 30 May WestJet
21 May - 28 May WestJet
28 May - 04 Jun WestJet
26 May - 02 Jun WestJet
20 May - 27 May jetBlue
25 May - 01 Jun jetBlue
27 May - 03 Jun jetBlue
22 May - 29 May jetBlue
24 May - 31 May jetBlue
01 May - 09 May SWISS
21 May - 31 May United

Also check the deals for one-way flights from Phoenix to Keflavik in May.

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