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Flights from Portland to Great Falls

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 3:00 PM
        6h
        Nonstop
        PWM 4:00 PM
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 12:20 PM
        12h 10m
        2 stops
        GTF 10:30 PM
        Portland - Great Falls | Tue, Jan 20 | Delta Air Lines
        DKK 1,890 DKK 3,464
        45% OFF
        45% OFF
        DKK 3,464 DKK 1,890
      • PWM 9:40 AM
        14h 13m
        2 stops
        GTF 9:53 PM
        Portland - Great Falls | Tue, Jan 20 | United Airlines
        DKK 1,970 DKK 3,464
        43% OFF
        43% OFF
        DKK 3,464 DKK 1,970
      • PWM 6:15 AM
        32h 16m
        2 stops
        GTF 12:31 PM
        Portland - Great Falls | Fri, Dec 12 | Delta Air Lines
        DKK 2,063 DKK 3,464
        40% OFF
        40% OFF
        DKK 3,464 DKK 2,063
      • PWM 2:35 PM
        23h 57m
        2 stops
        GTF 12:32 PM
        Portland - Great Falls | Sat, Jan 24 | Delta Air Lines
        DKK 2,149
        38% OFF
        DKK 3,464 DKK 2,149
      • PWM 8:40 AM
        15h 3m
        2 stops
        GTF 9:43 PM
        Portland - Great Falls | Sat, Jan 24 | United Airlines
        DKK 2,289
        34% OFF
        DKK 3,464 DKK 2,289
      • PWM 6:03 AM
        13h 25m
        2 stops
        GTF 5:28 PM
        Portland - Great Falls | Tue, Dec 16 | Delta Air Lines
        DKK 2,360
        32% OFF
        DKK 3,464 DKK 2,360
      • PWM 8:40 AM
        15h 13m
        2 stops
        GTF 9:53 PM
        Portland - Great Falls | Thu, Jan 15 | United Airlines
        DKK 2,391
        31% OFF
        DKK 3,464 DKK 2,391
      • PWM 3:00 PM
        32h 32m
        2 stops
        GTF 9:32 PM
        Portland - Great Falls | Tue, Dec 16 | United Airlines
        DKK 2,576
        26% OFF
        DKK 3,464 DKK 2,576
      • PWM 6:00 AM
        18h 46m
        2 stops
        GTF 10:46 PM
        Portland - Great Falls | Sat, Dec 27 | United Airlines
        DKK 3,079
        11% OFF
        DKK 3,464 DKK 3,079
      • PWM 6:00 AM
        18h 46m
        2 stops
        GTF 10:46 PM
        Portland - Great Falls | Thu, Jan 1 | United Airlines
        DKK 3,118
        10% OFF
        DKK 3,464 DKK 3,118
      • PWM 1:00 PM
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
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Displayed flight fares from Portland to Great Falls are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Portland to Great Falls

The distance between Portland and Great Falls is approximately 3,186.57 km. Based on Trip.com's data travel demand peaks in August. The off-season for travel is December.

Cheapest one-way flight priceDKK 1,890
Off-season for travelDecember
Peak season for travelAugust
Flight distance3,186.57 km

When is the cheapest time to fly from Portland to Great Falls?

The cheapest time for Portland to Great Falls flights: Jan 18 to Jan 25 — one way flight prices from DKK 1,890.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Portland to Great Falls, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • When is the best time to book flights from Portland to Great Falls?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Great Falls is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Portland to Great Falls, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jan 20, with one-way flights priced at just DKK 1,890.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Great Falls travel is around August.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Great Falls is December, when demand for travel is lower.
  • The time difference between Great Falls and Portland is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. 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. However, 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.

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