AirHint found the following cheapest return flights from Philadelphia (PHL) to Madrid (MAD) in April 2026 (see full year).

Return flights

22 Apr - 29 Apr	Iberia	direct
20 Apr - 01 May	British Airways	direct
21 Apr - 28 Apr	Iberia	direct
03 Apr - 11 Apr	TAP
01 Apr - 08 Apr	Iberia
08 Apr - 20 Apr	British Airways
02 Apr - 09 Apr	Iberia	direct
12 Apr - 19 Apr	Iberia	direct
22 Apr - 16 May	British Airways	direct
20 Apr - 10 May	British Airways	direct
03 Apr - 11 Apr	British Airways	direct
02 Apr - 11 Apr	British Airways	direct
11 Apr - 18 Apr	Iberia	direct

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

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 Philadelphia to Madrid in April from 585€

Return flights