Cheapest one-way PHL–LIS flights, August

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Lisbon (LIS) in August 2026 (see full year).

One-Way flights

16 Aug Frontier Airlines
28 Aug Frontier Airlines
05 Aug British Airways direct
16 Aug British Airways direct
30 Aug British Airways direct
28 Aug British Airways direct

Also check the deals for return flights from Philadelphia to Lisbon in August.

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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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