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$213+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PDX
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$280
(Delta)

One-way from

$213
(Delta)

Popular in

June

Cheapest in

September

Average price

$331
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 September 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 September 15, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 11/146:50 pmGTF - PDX
1 stop12h 27mAlaska Airlines
Mon 11/172:30 pmPDX - GTF
1 stop26h 40mAlaska Airlines
Deal found 9/15$312
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 10/206:09 pmGTF - PDX
1 stop6h 34mDelta
Wed 10/225:40 amPDX - GTF
1 stop5h 48mDelta
Deal found 9/15$323
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/246:15 pmGTF - PDX
1 stop19h 10mAlaska Airlines
Sun 10/265:30 pmPDX - GTF
1 stop23h 40mAlaska Airlines
Deal found 9/15$342
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/206:15 pmGTF - PDX
2 stops17h 52mAlaska Airlines
Wed 10/227:00 amPDX - GTF
2 stops9h 35mAlaska Airlines
Deal found 9/15$344
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/146:50 pmGTF - PDX
2 stops17h 25mAlaska Airlines
Sun 11/161:35 pmPDX - GTF
1 stop3h 35mAlaska Airlines
Deal found 9/14$352
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 10/246:09 pmGTF - PDX
1 stop6h 34mDelta
Sun 10/265:40 amPDX - GTF
1 stop5h 48mDelta
Deal found 9/14$366
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/231:08 pmGTF - PDX
2 stops10h 32mDelta
Sun 10/265:40 amPDX - GTF
1 stop5h 48mDelta
Deal found 9/14$395

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 September 15, 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

Fri 11/14

6:50 pm-10:32 am

1 stop16h 42m

Portland

Mon 11/17

2:30 pm-6:10 pm

1 stop26h 40m

$312

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 11/14

6:50 pm-9:06 am

1 stop15h 16m

Portland

Sun 11/16

1:35 pm-6:10 pm

1 stop3h 35m

$342

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 10/24

6:15 pm-12:25 pm

1 stop19h 10m

Portland

Sun 10/26

5:30 pm-6:10 pm

1 stop23h 40m

$342

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 10/20

6:15 pm-11:07 am

2 stops17h 52m

Portland

Wed 10/22

7:00 am-5:35 pm

2 stops9h 35m

$344

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 10/24

6:09 pm-11:43 pm

1 stop6h 34m

Portland

Sun 10/26

5:40 am-12:28 pm

1 stop5h 48m

$366

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 10/23

1:08 pm-10:40 pm

2 stops10h 32m

Portland

Sun 10/26

5:40 am-12:28 pm

1 stop5h 48m

$395

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 12/20

7:21 pm-10:53 am

1 stop16h 32m

Portland

Sat 12/27

1:51 pm-6:41 pm

1 stop3h 50m

$402

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 10/23

6:09 pm-11:43 pm

1 stop6h 34m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 $368). 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.

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 September 15, 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

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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.

  • How long is the flight from Great Falls to Portland?

    A quick flight from Great Falls to Portland can take about 16h 42m. Alaska Airlines provides one of the quickest options available for as low as $312. There are 548 mi between Great Falls and Portland.

  • 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 $368). 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
Cannon Beach
Long Beach
Longview
Lincoln City
Tigard
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Troutdale
Gresham
Silverton

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$221Average$565FlexibilityNo cancel feeOn-time75%
DeltaCheapest$264Average$397FlexibilityNo cancel feeOn-timeN/A

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