Cheapest return flights from Philadelphia to Madrid in May from $699

Best time to book flights for Philadelphia (PHL) to Madrid (MAD) flights at AirHint

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

Return flights

06 May - 15 May Spirit Airlines
25 May - 07 Jun Spirit Airlines
06 May - 15 May Finnair direct
25 May - 30 May Spirit Airlines
06 May - 13 May United
02 May - 09 May United
08 May - 15 May United
01 May - 07 May British Airways
04 May - 11 May United
25 May - 29 May jetBlue
21 May - 27 May Spirit Airlines
25 May - 07 Jun Finnair direct
26 May - 02 Jun United
29 May - 05 Jun United

Also check the deals for one-way flights from Philadelphia to Madrid 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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid