Cheapest return flights from Phoenix to Barcelona in September from $572

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

Return flights

24 Sep - 01 Oct United
30 Sep - 07 Oct United
27 Sep - 30 Sep Hawaiian Airlines
09 Sep - 16 Sep United
15 Sep - 22 Sep Hawaiian Airlines
28 Sep - 05 Oct Air Canada
04 Sep - 11 Sep Lufthansa
11 Sep - 16 Sep Hawaiian Airlines
12 Sep - 15 Sep Hawaiian Airlines
27 Sep - 04 Oct United
06 Sep - 13 Sep United
11 Sep - 14 Sep Frontier Airlines
12 Sep - 19 Sep United
21 Sep - 28 Sep United

Also check the deals for one-way 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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