Cheapest one-way flights from Boston to Philadelphia in January from 50€

AirHint found the following cheapest one-way flights from Boston (BOS) to Philadelphia (PHL) in January 2026 (see full year).

One-Way flights

27 Jan Delta direct
28 Jan Delta direct
29 Jan Delta direct
31 Jan Delta direct
26 Jan Delta direct
12 Jan Frontier Airlines
18 Jan Delta direct
15 Jan Delta direct
16 Jan Delta direct
30 Jan Spirit Airlines

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

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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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