AirHint found the following cheapest return flights from Philadelphia (PHL) to Lisbon (LIS) in July 2026 (see full year).
Return flights
| 17 Jul - 26 Jul | TAP | ||
| 13 Jul - 08 Aug | Aer Lingus | ||
| 17 Jul - 26 Jul | Iberia | direct | |
| 01 Jul - 25 Jul | Aer Lingus | ||
| 01 Jul - 25 Jul | Iberia | direct |
Also check the deals for one-way flights from Philadelphia to Lisbon in July.
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