AirHint found the following cheapest return flights from Philadelphia (PHL) to Madrid (MAD) in August 2026 (see full year).
Return flights
| 20 Aug - 13 Sep | British Airways | ||
| 20 Aug - 13 Sep | Iberia | direct | |
| 21 Aug - 13 Sep | British Airways | direct | |
| 01 Aug - 08 Aug | Aer Lingus | ||
| 01 Aug - 08 Aug | British Airways | direct |
Also check the deals for one-way flights from Philadelphia to Madrid in August.
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