AirHint found the following cheapest return flights from Philadelphia (PHL) to Lisbon (LIS) in July 2026 (see full year).
Return flights
| 18 Jul - 22 Jul | TAP | ||
| 31 Jul - 08 Aug | TAP | ||
| 09 Jul - 19 Jul | Air Canada | ||
| 31 Jul - 08 Aug | Iberia | direct | |
| 09 Jul - 19 Jul | British Airways | direct | |
| 18 Jul - 22 Jul | Finnair | direct |
Also check the deals for one-way flights from Philadelphia to Lisbon in July.
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