Cheapest return flights from Phoenix to Keflavik in July from $658

Best time to book flights for Phoenix (PHX) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Phoenix (PHX) to Keflavik (KEF) in July 2025 (see full year).

Return flights

29 Jul - 06 Aug WestJet
28 Jul - 06 Aug WestJet
11 Jul - 19 Jul Frontier Airlines
07 Jul - 16 Jul WestJet
30 Jul - 07 Aug Frontier Airlines
10 Jul - 19 Jul Frontier Airlines
03 Jul - 11 Jul WestJet
27 Jul - 04 Aug Frontier Airlines
13 Jul - 21 Jul Frontier Airlines
03 Jul - 12 Jul WestJet
12 Jul - 20 Jul Frontier Airlines
31 Jul - 09 Aug Frontier Airlines
22 Jul - 30 Jul Frontier Airlines
01 Jul - 09 Jul Frontier Airlines
24 Jul - 02 Aug Hawaiian Airlines
11 Jul - 20 Jul Frontier Airlines
26 Jul - 04 Aug Alaska Airlines

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik