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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
17 Aug 26 Aug Frontier Airlines
28 Aug 08 Sep jetBlue
16 Aug 25 Aug Frontier Airlines
20 Aug 06 Sep Frontier Airlines
17 Aug 23 Aug Frontier Airlines
23 Aug 28 Aug jetBlue
24 Aug 29 Aug jetBlue
16 Aug 25 Aug Finnair
Direct Flight
17 Aug 26 Aug Finnair
Direct Flight
07 Aug 11 Aug jetBlue
20 Aug 06 Sep Finnair
Direct Flight
09 Aug 14 Aug Frontier Airlines
09 Aug 14 Aug Iberia
Direct Flight
Powered by

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

Book a cheap hotel in Lisbon

Cheap car rent in Lisboa

Updated Jul 19, 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.

Feel free to contact us with any feedback or request another flight research.