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

Return flights

27 Oct - 11 Nov	Air Canada
26 Oct - 11 Nov	Air Canada
15 Oct - 23 Oct	American Airlines
14 Oct - 21 Oct	Delta
27 Oct - 03 Nov	Air Canada
29 Oct - 05 Nov	Air Canada
22 Oct - 29 Oct	Air France
15 Oct - 22 Oct	British Airways
28 Oct - 04 Nov	Air France
20 Oct - 15 Nov	Lufthansa
18 Oct - 08 Nov	Air Canada
15 Oct - 08 Nov	WestJet
14 Oct - 08 Nov	Frontier Airlines
30 Oct - 06 Nov	United
01 Oct - 09 Oct	Delta
01 Oct - 08 Oct	Delta
08 Oct - 15 Oct	Delta
16 Oct - 23 Oct	British Airways
17 Oct - 24 Oct	British Airways
07 Oct - 14 Oct	British Airways

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

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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Cheapest return flights from Phoenix to Barcelona in October from $503

Return flights