Cheapest return flights from Phoenix to Keflavik in October from 914€

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 October 2025 (see full year).

Return flights

16 Oct - 22 Oct Alaska Airlines
01 Oct - 08 Oct Alaska Airlines

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

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.

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