Cheapest return flights from Philadelphia to Boston in December from $133

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

Return flights

03 Dec - 03 Dec American Airlines direct
17 Dec - 10 Jan American Airlines direct
05 Dec - 07 Dec Delta direct
30 Dec - 01 Jan American Airlines direct
09 Dec - 19 Jan Delta direct
09 Dec - 12 Jan Delta direct
24 Dec - 31 Dec Delta direct
31 Dec - 02 Jan American Airlines direct
30 Dec - 02 Jan American Airlines direct
20 Dec - 02 Jan Delta direct
12 Dec - 19 Jan Delta direct
12 Dec - 18 Jan Delta direct
09 Dec - 10 Dec Spirit Airlines
03 Dec - 07 Dec Spirit Airlines
03 Dec - 13 Dec Spirit Airlines
03 Dec - 04 Dec Spirit Airlines
03 Dec - 08 Dec Spirit Airlines
20 Dec - 28 Dec jetBlue direct
04 Dec - 13 Dec Spirit Airlines

Also check the deals for one-way flights from Philadelphia to Boston 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.

Book a cheap hotel in Boston

Cheap car rent in Boston

Feel free to contact us with any feedback or request another flight research.