HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$270+ Cheap flights from Great Falls to Portland (GTF - PDX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PDX
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Great Falls to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 12/317:21 pmGTF - PDX
1 stop5h 51mAlaska Airlines
Sun 1/41:51 pmPDX - GTF
1 stop3h 50mAlaska Airlines
Deal found 12/21$750
This Delta deal was found by Cheapflights users on 12/22. 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 12/266:18 pmGTF - PDX
1 stop6h 41mDelta
Tue 12/3010:03 amPDX - GTF
1 stop6h 35mDelta
Deal found 12/22$926
This Kiwi.com deal was found by Cheapflights users on 12/22. 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.
Wed 12/247:21 pmGTF - PDX
1 stop5h 51mAlaska Airlines
Fri 12/261:51 pmPDX - GTF
1 stop3h 50mAlaska Airlines
Deal found 12/22$932
This Delta deal was found by Cheapflights users on 12/22. 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 12/241:11 pmGTF - PDX
2 stops8h 25mDelta
Fri 12/265:30 amPDX - GTF
1 stop6h 01mDelta
Deal found 12/22$992

Find 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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$270
(Alaska Airlines)

Popular in

October

Cheapest in

February

Average price

$468
Provider with most accurate pricing for Great Falls-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-Portland flights.
Search Deals
From Great Falls to Portland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 23, 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 1/23

5:59 pm-8:47 pm

1 stop3h 48m

Portland

Tue 1/27

9:30 pm-5:19 pm

1 stop18h 49m

$270

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 2/20

4:57 pm-10:41 pm

1 stop6h 44m

Portland

Sun 2/22

8:30 am-4:17 pm

1 stop6h 47m

$286

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 1/10

5:30 am-9:03 am

1 stop4h 33m

Portland

Mon 1/12

5:00 pm-10:30 pm

1 stop4h 30m

$411

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 1/10

5:59 pm-10:46 pm

1 stop5h 47m

Portland

Mon 1/12

6:49 pm-5:19 pm

2 stops21h 30m

$422

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 2/20

1:15 pm-8:55 pm

2 stops8h 40m

Portland

Sun 2/22

1:27 pm-10:29 pm

2 stops8h 02m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Compare providers for flights from Great Falls to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Portland in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-Portland flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Great Falls-Portland flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Great Falls-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Portland flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Great Falls to Portland (average of $143). Flying from Great Falls to Portland in April is currently the most expensive (average of $425). 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 December 23, 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
11,513 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
Alaska Airlines
8.0
Very good
11,513 reviews
Alaska Airlines
8.0
Very good
11,513 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
Delta
7.9
Good
8,014 reviews
Alaska Airlines
8.0
Very good
11,513 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

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 3h 48m. Alaska Airlines provides one of the quickest options available for as low as $270. 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 $264, Delta will fly you from Great Falls to Portland and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Alaska Airlines for as low as $381. Delta is 42% 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, August is the cheapest month in which you can book a flight from Great Falls to Portland (average of $143). Flying from Great Falls to Portland in April is currently the most expensive (average of $425). 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
Clackamas
Lincoln City
Longview
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
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

See prices for flight routes from nearby airports that may be better suited for you.
Kalispell to Portland flights
Missoula to Portland flights
Bozeman to Portland flights
Billings to Portland flights
Billings to Redmond flights
Bozeman to Boise flights
Kalispell to Boise flights
Missoula to Eugene flights
Billings to Boise flights
Bozeman to Eugene flights
Missoula to Boise flights
Helena to Portland flights
Bozeman to Redmond flights
Helena to Redmond flights
Bozeman to Medford flights
Helena to Boise flights
Great Falls to Redmond flights
Helena to Medford flights
Helena to Eugene flights
Great Falls to Boise flights
Great Falls to Eugene flights
Butte to Portland flights
Missoula to Medford flights
Billings to Eugene flights
Cody to Portland flights
Billings to Medford flights
Helena to North Bend flights
Butte to Eugene flights
Bozeman to North Bend flights
Missoula to Pendleton flights

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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$264Average$397FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$381Average$610FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.