Cheapest one-way flights from Philadelphia to Lisbon in March from $304

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

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Lisbon (LIS) in March 2025 (see full year).

One-Way flights

17 Mar Frontier Airlines
25 Mar Frontier Airlines
01 Mar Spirit Airlines
21 Mar Frontier Airlines
10 Mar Air Canada
25 Mar Iberia direct
10 Mar American Airlines direct
17 Mar British Airways direct
21 Mar Iberia direct
07 Mar Air Canada

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

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