Cheapest return flights from Boston to Philadelphia in January from 110€

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

Return flights

07 Jan - 14 Jan Delta direct
08 Jan - 15 Jan American Airlines direct
09 Jan - 16 Jan American Airlines direct
11 Jan - 18 Jan American Airlines direct
12 Jan - 19 Jan jetBlue direct
14 Jan - 21 Jan American Airlines direct
20 Jan - 23 Jan United
02 Jan - 05 Jan Delta direct
13 Jan - 16 Jan United

Also check the deals for one-way 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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