Cheapest one-way flights from Phoenix to Barcelona in September from 245€

AirHint found the following cheapest one-way flights from Phoenix (PHX) to Barcelona (BCN) in September 2025 (see full year).

One-Way flights

17 Sep Frontier Airlines
29 Sep Frontier Airlines
13 Sep Frontier Airlines
16 Sep Hawaiian Airlines

Also check the deals for return flights from Phoenix to Barcelona in September.

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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