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Cheapest return flights from Philadelphia (PHL) to Lisbon (LIS), August

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Dates, airline, and price
Dates	Airline	Price
17 Aug 23 Aug	Aer Lingus
18 Aug 26 Aug	Aer Lingus
24 Aug 29 Aug	jetBlue
23 Aug 29 Aug	Aer Lingus
23 Aug 28 Aug	Aer Lingus
18 Aug 26 Aug	Iberia Direct Flight
23 Aug 28 Aug	Finnair Direct Flight
23 Aug 29 Aug	Finnair Direct Flight

deals for one-way flights from Philadelphia to Lisbon in August.

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Updated May 23, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest return flights from Philadelphia (PHL) to Lisbon (LIS), August

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