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

Return flights

27 Jan - 03 Feb	Brussels Airlines
18 Jan - 30 Jan	Finnair	direct
14 Jan - 19 Jan	British Airways
20 Jan - 27 Jan	Iberia	direct
14 Jan - 21 Jan	Iberia	direct
27 Jan - 03 Feb	American Airlines	direct
28 Jan - 04 Feb	Iberia	direct
26 Jan - 30 Jan	Spirit Airlines
15 Jan - 20 Jan	British Airways
15 Jan - 28 Jan	British Airways
15 Jan - 20 Jan	Iberia	direct
16 Jan - 23 Jan	Iberia	direct
18 Jan - 25 Jan	Iberia	direct
30 Jan - 06 Feb	Iberia	direct

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

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 January from $488

Return flights