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Philadelphia International Airport to Portsmouth International Airport flight
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Philadelphia International Airport to Portsmouth International Airport Flights Info

Cheapest one-way
€249
Frontier Airlines Frontier Airlines 12h 56m · 1 stop Thu, Nov 19
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Frontier Airlines Frontier AirlinesCheapest· From €249 Jetblue Airways Jetblue AirwaysMost booked

Find the cheapest Philadelphia to Boston flights over the next 3 months. One-way fares from €249, return fares from €249.

    • Cheapest
      PHL 05:15
      12h 56m
      1 stop
      PSM 18:11
      Philadelphia - Boston | Thu, Nov 19 | Frontier Airlines
      €249 €345
      28% off
      28% off
      €345 €249
    • PHL 17:45
      26h 12m
      1 stop
      PSM 19:57
      Philadelphia - Boston | Tue, Nov 17 | Frontier Airlines
      €257 €345
      26% off
      26% off
      €345 €257
    • PHL 07:35
      12h 22m
      1 stop
      PSM 19:57
      Philadelphia - Boston | Wed, Nov 18 | Frontier Airlines
      €279 €345
      19% off
      19% off
      €345 €279
    • PHL 13:00
      17h 25m
      1 stop
      BOS 14:00
      Philadelphia - Boston | Sun, Nov 15 | Normal Airline
      Find more flights
      Find more flights
    • PHL 07:35
      12h 22m
      1 stop
      PSM 19:57
      Philadelphia - Boston | Wed, Nov 18 | Frontier Airlines
      €279 €345
      19% off
      19% off
      €345 €279
    • PHL 05:15
      12h 56m
      1 stop
      PSM 18:11
      Philadelphia - Boston | Thu, Nov 19 | Frontier Airlines
      €249 €345
      28% off
      28% off
      €345 €249
    • PHL 17:45
      26h 12m
      1 stop
      PSM 19:57
      Philadelphia - Boston | Tue, Nov 17 | Frontier Airlines
      €257 €345
      26% off
      26% off
      €345 €257
    • PHL 13:00
      17h 25m
      1 stop
      BOS 14:00
      Philadelphia - Boston | Sun, Nov 15 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Philadelphia to Boston are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Philadelphia International Airport to Portsmouth International Airport?

The cheapest airline flying from Philadelphia International Airport to Portsmouth International Airport is Frontier Airlines (from €249) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.
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FAQs for Philadelphia International Airport to Portsmouth International Airport Flights

  • What is the average price of a flight from Philadelphia International Airport to Portsmouth International Airport?

    Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Philadelphia International Airport to Portsmouth International Airport is €203. Prices may vary depending on the departure date, airline, and availability.
  • Enter Philadelphia International Airport and Portsmouth International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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