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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 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 13:00
        17h 25m
        1 stop
        GTF Invalid Date
        Portland - Great Falls | Sat, Dec 13 | Normal Airline
        GTF 15:00
        6h
        Nonstop
        PWM 16:00
        Great Falls - Portland | Mon, Dec 15 | Normal Airline
        Search
        Search
      • PWM 12:20
        12h 10m
        2 stops
        GTF 22:30
        Portland - Great Falls | Tue, Jan 20 | Delta Air Lines
        TWD 9,219 TWD 16,897
        45% OFF
        45% OFF
        TWD 16,897 TWD 9,219
      • PWM 09:40
        14h 13m
        2 stops
        GTF 21:53
        Portland - Great Falls | Tue, Jan 20 | United Airlines
        TWD 9,608 TWD 16,897
        43% OFF
        43% OFF
        TWD 16,897 TWD 9,608
      • PWM 06:15
        32h 16m
        2 stops
        GTF 12:31
        Portland - Great Falls | Fri, Dec 12 | Delta Air Lines
        TWD 10,059 TWD 16,897
        40% OFF
        40% OFF
        TWD 16,897 TWD 10,059
      • PWM 14:35
        23h 57m
        2 stops
        GTF 12:32
        Portland - Great Falls | Sat, Jan 24 | Delta Air Lines
        TWD 10,478
        38% OFF
        TWD 16,897 TWD 10,478
      • PWM 08:40
        15h 3m
        2 stops
        GTF 21:43
        Portland - Great Falls | Sat, Jan 24 | United Airlines
        TWD 11,163
        34% OFF
        TWD 16,897 TWD 11,163
      • PWM 06:03
        13h 25m
        2 stops
        GTF 17:28
        Portland - Great Falls | Tue, Dec 16 | Delta Air Lines
        TWD 11,508
        32% OFF
        TWD 16,897 TWD 11,508
      • PWM 08:40
        15h 13m
        2 stops
        GTF 21:53
        Portland - Great Falls | Thu, Jan 15 | United Airlines
        TWD 11,663
        31% OFF
        TWD 16,897 TWD 11,663
      • PWM 15:00
        32h 32m
        2 stops
        GTF 21:32
        Portland - Great Falls | Tue, Dec 16 | United Airlines
        TWD 12,564
        26% OFF
        TWD 16,897 TWD 12,564
      • PWM 06:00
        18h 46m
        2 stops
        GTF 22:46
        Portland - Great Falls | Sat, Dec 27 | United Airlines
        TWD 15,017
        11% OFF
        TWD 16,897 TWD 15,017
      • PWM 06:00
        18h 46m
        2 stops
        GTF 22:46
        Portland - Great Falls | Thu, Jan 1 | United Airlines
        TWD 15,207
        10% OFF
        TWD 16,897 TWD 15,207
      • PWM 13:00
        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 priceTWD 9,219
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 TWD 9,218.

Cheapest flights
From price
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  • 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 TWD 9,219.
    · 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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