Cheapest return flights from Boston to Philadelphia in December from 100€

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

Return flights

01 Dec - 06 Dec Frontier Airlines
13 Dec - 15 Dec Delta direct
11 Dec - 14 Dec Delta direct
04 Dec - 08 Dec Delta direct
04 Dec - 07 Dec Delta direct
06 Dec - 08 Dec Delta direct
06 Dec - 10 Dec Delta direct
12 Dec - 14 Dec Delta direct
15 Dec - 29 Dec Delta direct
09 Dec - 10 Dec Spirit Airlines
29 Dec - 06 Jan Delta direct
27 Dec - 03 Jan Delta direct
30 Dec - 02 Jan Delta direct
30 Dec - 17 Jan Spirit Airlines
18 Dec - 06 Jan Spirit Airlines
30 Dec - 10 Jan Spirit Airlines
19 Dec - 06 Jan Spirit Airlines
30 Dec - 06 Jan Spirit Airlines
21 Dec - 10 Jan Spirit Airlines
16 Dec - 05 Jan Spirit Airlines

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

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