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Portsmouth International Airport to Buffalo Niagara International Airport flight

Search for flights from Boston to Buffalo and check out affordable one-way and round-trip options.

      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        BUF 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Buffalo - Boston | Wed, Oct 7 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search
      • BOS 1:00 PM
        17h 25m
        1 stop
        BUF 2:00 PM
        Boston - Buffalo | Mon, Oct 5 | Normal Airline
        Search
        Search

Displayed flight fares from Portsmouth International Airport to Buffalo Niagara International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

About Portsmouth International Airport and Buffalo Niagara International Airport

Learn about Portsmouth International Airport (PSM) and Buffalo Niagara International Airport (BUF) — including location, terminals, transportation, and travel tips.

Flight distance 638.79 km

FAQs for Portsmouth International Airport to Buffalo Niagara International Airport Flights

  • What is the average price of a flight from Portsmouth International Airport to Buffalo Niagara 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 Portsmouth International Airport to Buffalo Niagara International Airport is $241. Prices may vary depending on the departure date, airline, and availability.
  • Enter Portsmouth International Airport and Buffalo Niagara 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.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.