Cheapest one-way flights from Boston to Philadelphia in March from 18€

Best time to book flights for Boston (BOS) to Philadelphia (PHL) flights at AirHint

AirHint found the following cheapest one-way flights from Boston (BOS) to Philadelphia (PHL) in March 2025 (see full year).

One-Way flights

24 Mar Frontier Airlines direct
27 Mar Frontier Airlines direct
20 Mar Frontier Airlines direct
06 Mar Frontier Airlines direct
10 Mar Frontier Airlines direct
13 Mar Frontier Airlines direct
31 Mar Frontier Airlines direct
17 Mar Frontier Airlines direct
28 Mar Frontier Airlines direct
22 Mar Frontier Airlines direct

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

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.

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