Cheapest return flights from Boston to Philadelphia in April from 37€

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

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

Return flights

09 Apr - 16 Apr Frontier Airlines direct
07 Apr - 12 Apr Frontier Airlines direct
05 Apr - 09 Apr Frontier Airlines direct
12 Apr - 16 Apr Frontier Airlines direct
13 Apr - 16 Apr Frontier Airlines direct
14 Apr - 21 Apr Frontier Airlines direct
10 Apr - 14 Apr Frontier Airlines direct
03 Apr - 06 Apr Frontier Airlines direct
12 Apr - 19 Apr Frontier Airlines direct
06 Apr - 09 Apr Frontier Airlines direct
20 Apr - 05 May Frontier Airlines
19 Apr - 02 May Frontier Airlines
28 Apr - 02 May Frontier Airlines
21 Apr - 01 May Frontier Airlines
21 Apr - 19 May Frontier Airlines
25 Apr - 04 May Frontier Airlines

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

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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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