Cheapest one-way flights from Philadelphia to Lisbon in December from 226€

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

One-Way flights

08 Dec Frontier Airlines
07 Dec Frontier Airlines
06 Dec Spirit Airlines
03 Dec Spirit Airlines
02 Dec Spirit Airlines
08 Dec Iberia direct
02 Dec British Airways direct
03 Dec British Airways direct
07 Dec Iberia direct
22 Dec Frontier Airlines

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

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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