Cheapest return flights from Philadelphia to Lisbon in August from 1007€

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

18 Aug - 25 Aug United
24 Aug - 31 Aug Finnair
01 Aug - 13 Aug Finnair
08 Aug - 15 Aug United
24 Aug - 31 Aug Iberia direct
28 Aug - 04 Sep United
24 Aug - 30 Aug Lufthansa
24 Aug - 30 Aug British Airways direct

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.

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