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Cheap flight deals from Portland to Great Falls Starting at £85

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

  • One way
  • Round-trip
      • PDX05:20 pm
        4h 26m
        1 stop
        GTF10:46 pm
        Tue, Apr 15|Portland - Great Falls|Delta Air Lines
        £85£442
        81% OFF
        81% OFF
        £442£85

        Choose Delta Air Lines flights from Portland to Great Falls. The one-way connecting flight with Delta Air Lines departs from Portland International Airport on Tue, Apr 15, arriving at Great Falls International Airport. One-way Prices start from £85 including taxes and charges.

      • PDX08:00 am
        6h 12m
        1 stop
        GTF03:12 pm
        Tue, Apr 15|Portland - Great Falls|Alaska Airlines
        £119£442
        73% OFF
        73% OFF
        £442£119

        Choose Alaska Airlines flights from Portland to Great Falls. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Tue, Apr 15, arriving at Great Falls International Airport. One-way Prices start from £119 including taxes and charges.

      • PDX05:26 pm
        4h
        1 stop
        GTF10:26 pm
        Tue, May 6|Portland - Great Falls|Delta Air Lines
        £122£442
        72% OFF
        72% OFF
        £442£122

        Choose Delta Air Lines flights from Portland to Great Falls. The one-way connecting flight with Delta Air Lines departs from Portland International Airport on Tue, May 6, arriving at Great Falls International Airport. One-way Prices start from £122 including taxes and charges.

      • PDX07:15 am
        5h 50m
        1 stop
        GTF02:05 pm
        Sat, Mar 1|Portland - Great Falls|Alaska Airlines
        £134
        £134

        Choose Alaska Airlines flights from Portland to Great Falls. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Sat, Mar 1, arriving at Great Falls International Airport. One-way Prices start from £134 including taxes and charges.

      • PDX06:20 am
        14h 3m
        1 stop
        GTF09:23 pm
        Tue, May 6|Portland - Great Falls|Frontier Airlines
        £156
        £156

        Choose Frontier Airlines flights from Portland to Great Falls. The one-way connecting flight with Frontier Airlines departs from Portland International Airport on Tue, May 6, arriving at Great Falls International Airport. One-way Prices start from £156 including taxes and charges.

      • PDX04:00 pm
        21h 5m
        1 stop
        GTF02:05 pm
        Thu, Mar 13|Portland - Great Falls|Alaska Airlines
        £159
        £159

        Choose Alaska Airlines flights from Portland to Great Falls. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Thu, Mar 13, arriving at Great Falls International Airport. One-way Prices start from £159 including taxes and charges.

      • PDX05:22 pm
        23h 5m
        1 stop
        GTF05:27 pm
        Tue, May 6|Portland - Great Falls|Alaska Airlines
        £175
        £175

        Choose Alaska Airlines flights from Portland to Great Falls. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Tue, May 6, arriving at Great Falls International Airport. One-way Prices start from £175 including taxes and charges.

      • PDX09:00 am
        11h 19m
        1 stop
        GTF09:19 pm
        Sat, Mar 1|Portland - Great Falls|United Airlines
        £219
        £219

        Choose United Airlines flights from Portland to Great Falls. The one-way connecting flight with United Airlines departs from Portland International Airport on Sat, Mar 1, arriving at Great Falls International Airport. One-way Prices start from £219 including taxes and charges.

      • PDX09:40 am
        3h 25m
        1 stop
        GTF02:05 pm
        Sat, Feb 22|Portland - Great Falls|Alaska Airlines
        £340
        £340

        Choose Alaska Airlines flights from Portland to Great Falls. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Sat, Feb 22, arriving at Great Falls International Airport. One-way Prices start from £340 including taxes and charges.

      • PDX07:15 am
        5h 50m
        1 stop
        GTF02:05 pm
        Sat, Feb 22|Portland - Great Falls|Hawaiian Airlines
        £348
        £348

        Choose Hawaiian Airlines flights from Portland to Great Falls. The one-way connecting flight with Hawaiian Airlines departs from Portland International Airport on Sat, Feb 22, arriving at Great Falls International Airport. One-way Prices start from £348 including taxes and charges.

      • PDX01:00 pm
        3h 5m
        Nonstop
        GTF02:00 pm
        Thu, Feb 27|Portland - Great Falls|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Portland to Great Falls Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS910

    Alaska Airlines

    01:25 pm

    PDX

    1.0h

    02:26 pm

    SEA

    SMTWTFS
    Search

  2. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  3. DL3802

    Delta Air Lines

    01:38 pm

    PDX

    1.1h

    02:43 pm

    SEA

    SMTWTFS
    Search

  4. DL1165

    Delta Air Lines

    05:45 pm

    SEA

    2.1h

    08:54 pm

    SLC

    SMTWTFS

  5. DL3845

    Delta Air Lines

    09:15 pm

    SLC

    1.5h

    10:46 pm

    GTF

    SMTWTFS

  6. DL1244

    Delta Air Lines

    05:20 pm

    PDX

    1.9h

    08:15 pm

    SLC

    SMTWTFS
    Search

  7. DL3845

    Delta Air Lines

    09:15 pm

    SLC

    1.5h

    10:46 pm

    GTF

    SMTWTFS

  8. DL1270

    Delta Air Lines

    05:55 am

    PDX

    1.9h

    08:50 am

    SLC

    SMTWTFS
    Search

  9. DL3859

    Delta Air Lines

    10:05 am

    SLC

    1.6h

    11:43 am

    GTF

    SMTWTFS

  10. AS1032

    Alaska Airlines

    06:00 am

    PDX

    0.9h

    06:53 am

    SEA

    SMTWTFS
    Search

  11. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  12. HA6394

    Hawaiian Airlines

    06:15 am

    PDX

    1.0h

    07:13 am

    SEA

    SMTWTFS
    Search

  13. HA6552

    Hawaiian Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  14. AS2384

    Alaska Airlines

    08:00 am

    PDX

    1.0h

    09:02 am

    SEA

    S--WT--
    Search

  15. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  16. UA1974

    United Airlines

    09:00 am

    PDX

    2.6h

    12:34 pm

    DEN

    SMTWTFS
    Search

  17. UA5240

    United Airlines

    07:15 pm

    DEN

    2.1h

    09:23 pm

    GTF

    SMTWTFS

  18. AS3362

    Alaska Airlines

    09:40 am

    PDX

    0.9h

    10:37 am

    SEA

    SMTWTFS
    Search

  19. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  20. NK559

    Spirit Airlines

    10:16 am

    PDX

    2.2h

    12:29 pm

    LAS

    SMTWTFS
    Search

  21. UA1287

    United Airlines

    03:10 pm

    LAS

    2.0h

    06:08 pm

    DEN

    SMTWTFS

  22. UA5240

    United Airlines

    07:15 pm

    DEN

    2.1h

    09:23 pm

    GTF

    SMTWTFS
Find more flights and airlines

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

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Portland (PDX) to Great Falls (GTF) the cheapest?

    Airlines adjust prices for flights from Portland to Great Falls based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Portland (PDX) to Great Falls (GTF) cost?

    According to Trip.com's data, the lowest price is around £433.

  • What is the transportation method from the main airport to downtown in Great Falls?

    • The distance from Great Falls International Airport to downtown is about 5 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Portland to Great Falls

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to Great Falls. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Portland to Great Falls

Cheapest nonstop flight price£84
Off-season for travelFebruary
Peak season for travelJanuary
Flight distance883.96 km
Popular airlineAlaska Airlines

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