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$169+ Cheap flights from Great Falls to Portland (GTF - PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PDX
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Great Falls to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$216
(Kiwi.com)

One-way from

$169
(Delta)

Popular in

June

Cheapest in

September

Average price

$342
From Great Falls to Portland
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One-way flight from Great Falls to Portland
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Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Great Falls to Portland

Cheapest flights from Great Falls to Portland
Explore the most affordable flight options available from Great Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1310:22 pmGTF - PDX
1 stop22h 14mMultiple Airlines
Thu 10/168:04 pmPDX - GTF
1 stop24h 33mMultiple Airlines
Deal found 8/12$216
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:09 pmGTF - PDX
2 stops6h 48mDelta
Tue 10/283:19 pmPDX - GTF
2 stops6h 47mDelta
Deal found 8/12$273
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:50 pmGTF - PDX
1 stop6h 19mAlaska Airlines
Tue 11/111:38 pmPDX - GTF
1 stop3h 32mAlaska Airlines
Deal found 8/12$278
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/121:05 pmGTF - PDX
1 stop21h 34mMultiple Airlines
Thu 10/168:04 pmPDX - GTF
1 stop24h 33mMultiple Airlines
Deal found 8/12$281
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:29 pmGTF - PDX
1 stop7h 18mAlaska Airlines
Fri 9/198:37 pmPDX - GTF
1 stop18h 12mAlaska Airlines
Deal found 8/12$288
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:15 pmGTF - PDX
1 stop7h 03mAlaska Airlines
Tue 10/2110:00 pmPDX - GTF
1 stop18h 35mAlaska Airlines
Deal found 8/12$298
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:15 pmGTF - PDX
2 stops20h 10mAlaska Airlines
Tue 10/286:00 amPDX - GTF
1 stop11h 10mAlaska Airlines
Deal found 8/12$320
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/21:05 pmGTF - PDX
1 stop30h 13mMultiple Airlines
Tue 10/148:36 pmPDX - GTF
2 stops38h 39mMultiple Airlines
Deal found 8/13$329
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:50 pmGTF - PDX
1 stop16h 42mAlaska Airlines
Mon 11/173:30 pmPDX - GTF
1 stop25h 40mAlaska Airlines
Deal found 8/12$338
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:09 pmGTF - PDX
1 stop6h 34mDelta
Thu 10/165:00 pmPDX - GTF
1 stop5h 06mDelta
Deal found 8/13$342

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Great Falls to Portland that are best for you.

Fly from

Great Falls

Fly to

Portland

Route

Depart

Return

Price

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 10/13

10:22 pm-7:36 pm

1 stop22h 14m

Portland

Thu 10/16

8:04 pm-9:37 pm

1 stop24h 33m

$216

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 11/5

6:09 pm-11:53 pm

2 stops6h 44m

Portland

Tue 11/11

7:10 am-5:42 pm

2 stops9h 32m

$273

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 10/22

6:09 pm-11:57 pm

2 stops6h 48m

Portland

Tue 10/28

3:19 pm-11:06 pm

2 stops6h 47m

$273

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 11/5

6:50 pm-12:09 am

1 stop6h 19m

Portland

Tue 11/11

1:38 pm-6:10 pm

1 stop3h 32m

$278

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sun 10/12

1:05 pm-9:39 am

1 stop21h 34m

Portland

Thu 10/16

8:04 pm-9:37 pm

1 stop24h 33m

$281

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 10/22

6:15 pm-10:45 pm

1 stop5h 30m

Portland

Tue 10/28

1:38 pm-6:10 pm

1 stop3h 32m

$288

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 9/16

4:29 pm-10:47 pm

1 stop7h 18m

Portland

Fri 9/19

8:37 pm-3:49 pm

1 stop18h 12m

$288

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 10/15

6:15 pm-12:18 am

1 stop7h 03m

Portland

Tue 10/21

10:00 pm-5:35 pm

1 stop18h 35m

$298

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 10/2

1:05 pm-6:18 pm

1 stop30h 13m

Portland

Tue 10/14

8:36 pm-12:15 pm

2 stops38h 39m

$329

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 10/2

6:11 pm-11:52 pm

1 stop6h 41m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 11 results
1
2

Best time to book a flight from Great Falls to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Great Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Great Falls to Portland

What is the cheapest month to book a flight from Great Falls to Portland?

Currently, November is the cheapest month in which you can book a flight from Great Falls to Portland (average of $277). Flying from Great Falls to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Great Falls to Portland?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Alaska Airlines and Delta from Great Falls to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Great Falls to Portland round-trip?

    Currently priced at $221, Alaska Airlines will fly you from Great Falls to Portland and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $264. Alaska Airlines is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Great Falls to Portland that include hotel bookings?

    Yes. In addition to deals on Great Falls to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Portland.

  • Can I find deals for business class flights from Great Falls to Portland?

    Yes. Cheapflights offers flight deals from Great Falls to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Great Falls to Portland?

    Currently, November is the cheapest month in which you can book a flight from Great Falls to Portland (average of $277). Flying from Great Falls to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Lincoln City
Cannon Beach
Long Beach
Longview
Tigard
Depoe Bay
Stevenson
Woodburn
Wilsonville
Pacific City
Troutdale
Tillamook
Gresham

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Great Falls to Portland

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Top 2 airlines flying from Great Falls to Portland

Discover the top 2 airlines that operate flights from Great Falls to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$221Average$610FlexibilityNo cancel feeOn-time75%
DeltaCheapest$264Average$397FlexibilityNo cancel feeOn-timeN/A

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