Cheapest return flights from Phoenix to Barcelona in May from $648

Best time to book flights for Phoenix (PHX) to Barcelona (BCN) flights at AirHint

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

Return flights

03 May - 10 May Frontier Airlines
13 May - 20 May Frontier Airlines
09 May - 13 May WestJet
03 May - 11 May Frontier Airlines
19 May - 06 Jun Frontier Airlines
12 May - 19 May United
28 May - 07 Jun Frontier Airlines
10 May - 17 May United
18 May - 27 Jun Air Canada
02 May - 11 May SWISS
02 May - 12 May Frontier Airlines
23 May - 30 May Frontier Airlines
20 May - 27 May United
20 May - 20 Jun United
27 May - 14 Jun Air Canada
28 May - 04 Jun United
26 May - 02 Jun United

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

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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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