Cheapest return flights from Philadelphia to Lisbon in March from $585

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 March 2025 (see full year).

Return flights

27 Mar - 01 Apr Frontier Airlines
09 Mar - 13 Mar Frontier Airlines
04 Mar - 11 Mar United
18 Mar - 25 Mar United
12 Mar - 19 Mar United
31 Mar - 06 Apr Frontier Airlines
26 Mar - 02 Apr United
07 Mar - 13 Mar Finnair
07 Mar - 14 Mar Iberia direct
10 Mar - 17 Mar United
30 Mar - 06 Apr United
02 Mar - 09 Mar United
28 Mar - 04 Apr United
07 Mar - 13 Mar British Airways direct
14 Mar - 22 Mar Air Canada
27 Mar - 01 Apr Iberia direct
31 Mar - 06 Apr Iberia direct

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

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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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