Cheapest return flights from Boston to Philadelphia in October from $117

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

Return flights

02 Oct - 14 Oct Frontier Airlines direct
03 Oct - 05 Oct Spirit Airlines
03 Oct - 05 Oct jetBlue direct
17 Oct - 19 Oct Spirit Airlines
04 Oct - 05 Oct Spirit Airlines
02 Oct - 03 Oct Spirit Airlines
02 Oct - 05 Oct Spirit Airlines
08 Oct - 16 Oct Spirit Airlines
06 Oct - 16 Oct Spirit Airlines
03 Oct - 16 Oct Spirit Airlines

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

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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