Cheapest return flights from Philadelphia to Lisbon in August from $995

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

Return flights

04 Aug - 10 Aug Aer Lingus
04 Aug - 10 Aug American Airlines 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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