AirHint found the following cheapest return flights from Philadelphia (PHL) to Rome (FCO) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Lufthansa
03 Dec - 17 Dec	Lufthansa
03 Dec - 24 Dec	Lufthansa
03 Dec - 12 Dec	Lufthansa
10 Dec - 19 Dec	Lufthansa
03 Dec - 09 Dec	Lufthansa
05 Dec - 16 Dec	Air Canada
02 Dec - 23 Dec	Air Canada
06 Dec - 16 Dec	Air Canada
31 Dec - 08 Jan	Lufthansa
30 Dec - 22 Jan	Air Canada
02 Dec - 19 Dec	Air Canada
16 Dec - 05 Jan	Iberia
24 Dec - 13 Jan	British Airways
24 Dec - 14 Jan	Air Canada
16 Dec - 06 Jan	British Airways
23 Dec - 13 Jan	Air Canada
23 Dec - 12 Jan	British Airways
24 Dec - 05 Jan	British Airways
17 Dec - 10 Jan	Spirit Airlines

Also check the deals for one-way flights from Philadelphia to Rome in December.

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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Cheapest return flights from Philadelphia to Rome in December from $482

Return flights