Cheapest return flights from Philadelphia (PHL) to Boston (BOS)

Cheapest month: November 2026, from $ 218. Book in one tap, or open a month for every date.

All destinations from Philadelphia (PHL)

One-wayReturn

  • November 2026

    19–21 Nov 2 nights
    $ 218 return Cheapest month
    Frontier Airlines
    Price seen 29 Oct
    November dates

  • December 2026

    30 Dec – 4 Jan 2027 5 nights
    $ 264 return
    Frontier Airlines
    Price seen 29 Oct
    December dates

  • May 2027

    29 May – 1 Jun 2027 3 nights
    $ 356 return
    Direct American Airlines
    Price seen 29 Oct
    May dates

  • September 2027

    13–16 Sep 2027 3 nights
    $ 355 return
    Direct American Airlines
    Price seen 29 Oct
    September dates
Powered by

Deals for one-way flights from Philadelphia to Boston.

Book a cheap hotel in Boston

Cheap car rent in General Edward Lawrence Logan Intl

Updated Oct 30, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.