Cheapest return flights from Phoenix to Keflavik in March from 483€

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

Return flights

02 Mar - 10 Mar Frontier Airlines
01 Mar - 09 Mar Frontier Airlines
31 Mar - 08 Apr Sun Country Airlines
10 Mar - 18 Mar Frontier Airlines
03 Mar - 11 Mar Frontier Airlines
17 Mar - 25 Mar jetBlue
11 Mar - 19 Mar jetBlue
24 Mar - 01 Apr Frontier Airlines
05 Mar - 13 Mar Frontier Airlines
09 Mar - 17 Mar Hawaiian Airlines
20 Mar - 28 Mar jetBlue
16 Mar - 24 Mar jetBlue
25 Mar - 02 Apr Frontier Airlines
29 Mar - 06 Apr Sun Country Airlines
26 Mar - 03 Apr Frontier Airlines
27 Mar - 04 Apr jetBlue
28 Mar - 05 Apr Frontier Airlines
30 Mar - 07 Apr Hawaiian Airlines

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

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