Cheapest return flights from Philadelphia to Barcelona in May from 526€

Best time to book flights for Philadelphia (PHL) to Barcelona (BCN) flights at AirHint

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

Return flights

10 May - 17 May KLM
16 May - 25 May Spirit Airlines
21 May - 26 May Aer Lingus
29 May - 05 Jun Frontier Airlines
14 May - 21 May United
02 May - 09 May United
05 May - 12 May United
08 May - 15 May United
11 May - 18 May United
31 May - 07 Jun Spirit Airlines
17 May - 24 May United
27 May - 04 Jun Aer Lingus
20 May - 27 May United
27 May - 04 Jun Finnair direct
23 May - 01 Jun Aer Lingus
29 May - 05 Jun Finnair direct
26 May - 02 Jun United
31 May - 07 Jun Finnair direct

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

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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