Cheapest one-way flights from Boston to Philadelphia in March from 56€

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

One-Way flights

03 Mar Frontier Airlines
02 Mar Spirit Airlines
04 Mar Spirit Airlines
09 Mar Frontier Airlines
01 Mar Delta direct
02 Mar Delta direct
03 Mar Delta direct
30 Mar Delta direct
28 Mar Delta direct
31 Mar Delta direct

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

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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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