Cheapest return flights from Philadelphia to Lisbon in August from 960€

Best time to book flights for Philadelphia (PHL) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to Lisbon (LIS) in August 2025 (see full year).

Return flights

12 Aug - 19 Aug United
03 Aug - 10 Aug Lufthansa
08 Aug - 15 Aug Air Canada
22 Aug - 29 Aug United
01 Aug - 08 Aug Air Canada
08 Aug - 15 Aug British Airways direct
04 Aug - 10 Aug Finnair
01 Aug - 08 Aug Iberia direct
02 Aug - 09 Aug United
09 Aug - 15 Aug Iberia

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon