AirHint found the following cheapest return flights from Philadelphia (PHL) to Venice (VCE) in September 2025 (see full year).

Return flights

10 Sep - 17 Sep	Frontier Airlines
02 Sep - 09 Sep	United
11 Sep - 18 Sep	Frontier Airlines
23 Sep - 30 Sep	United
17 Sep - 24 Sep	United
28 Sep - 05 Oct	British Airways	direct
08 Sep - 15 Sep	United
05 Sep - 12 Sep	United
14 Sep - 21 Sep	United
26 Sep - 03 Oct	United
15 Sep - 21 Sep	Frontier Airlines

Also check the deals for one-way flights from Philadelphia to Venice in September.

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 Venice in September from 612€

Return flights