Cheapest one-way flights from Boston to Philadelphia in December from 48€

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

One-Way flights

01 Dec Frontier Airlines direct
08 Dec jetBlue direct
14 Dec Delta direct
15 Dec Delta direct
13 Dec Delta direct
16 Dec Delta direct
17 Dec Delta direct
12 Dec Frontier Airlines
29 Dec jetBlue direct
12 Dec Delta direct

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

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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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