Cheapest return flights from Philadelphia to Lisbon in March from $562

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

Return flights

03 Mar - 10 Mar Spirit Airlines
03 Mar - 09 Mar Frontier Airlines
04 Mar - 15 Mar Frontier Airlines
06 Mar - 16 Mar Frontier Airlines
16 Mar - 21 Mar Spirit Airlines
20 Mar - 28 Mar Lufthansa
07 Mar - 15 Mar Frontier Airlines
03 Mar - 10 Mar Iberia direct
20 Mar - 29 Mar Aer Lingus
04 Mar - 15 Mar American Airlines direct
29 Mar - 03 Apr Frontier Airlines

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

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