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$214+ Cheap flights from Portland to Great Falls (PDX - GTF)

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GTF
ene. 26 — feb. 21
lun. 1/26
lun. 2/2
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Portland to Great Falls

Cheapest flights from Portland to Great Falls
Explore the most affordable flight options available from Portland to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 27, 2025.

This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/306:27 pmPDX - GTF
1 stop27h 19mUnited Airlines
jue. 1/16:15 amGTF - PDX
1 stop12h 16mUnited Airlines
Deal found 12/26$1,069

Find flight deals from Portland to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Great Falls (GTF). 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 diciembre 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$214
(Alaska Airlines)

Popular in

December

Cheapest in

November

Average price

$597
Provider with most accurate pricing for Portland-Great Falls flight deals.
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Provider most trusted by Cheapflights users for Portland-Great Falls flights.
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From Portland to Great Falls
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($25 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 December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Great Falls 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 diciembre 27, 2025.
Use the filters below to find and compare flights from Portland to Great Falls that are best for you.

Fly from

Portland

Fly to

Great Falls

Route

Depart

Return

Price

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

sáb. 1/31

9:10 am-5:19 pm

1 stop7h 09m

Great Falls

mar. 2/3

5:59 pm-12:09 am

1 stop7h 10m

$234

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

lun. 2/2

9:30 pm-5:19 pm

1 stop18h 49m

Great Falls

lun. 2/9

5:59 pm-8:47 pm

1 stop3h 48m

$243

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

mié. 1/14

5:35 pm-5:19 pm

1 stop22h 44m

Great Falls

mié. 1/21

5:59 pm-8:47 pm

1 stop3h 48m

$244

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

lun. 2/2

7:10 am-5:30 pm

2 stops9h 20m

Great Falls

lun. 2/9

1:12 pm-8:59 pm

2 stops8h 47m

$265

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

vie. 1/30

2:38 pm-5:19 pm

1 stop25h 41m

Great Falls

lun. 2/2

5:59 pm-9:45 am

2 stops40h 46m

$301

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

mié. 1/14

7:10 am-5:30 pm

2 stops9h 20m

Great Falls

mié. 1/21

1:12 pm-8:59 pm

2 stops8h 47m

$406

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

sáb. 1/31

3:52 pm-9:53 pm

2 stops29h 01m

Great Falls

mar. 2/3

2:29 pm-2:53 pm

2 stops25h 24m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Compare providers for flights from Portland to Great Falls

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 Portland to Great Falls 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 Portland-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Great Falls 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 Portland-Great Falls 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 Portland to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Portland 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 Portland to Great Falls

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

Currently, May is the cheapest month in which you can book a flight from Portland to Great Falls (average of $198). Flying from Portland to Great Falls in March is currently the most expensive (average of $342). 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.

What is the cheapest time of day to fly from PDX to GTF?

Find hourly flight availability from Portland to Great Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 27, 2025.

It’s optimal to fly from Portland to Great Falls in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated diciembre 27, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from Portland to Great Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,545 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

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
11,545 reviews
Alaska Airlines
8.0
Very good
11,545 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

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
8,019 reviews
Alaska Airlines
8.0
Very good
11,545 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

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 Portland to Great Falls. 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 Portland to Great Falls?

    Departing from Portland to Great Falls will take you 7h 09m. Portland and Great Falls are separated by a distance of 548 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Delta, at $246, was found to be the cheapest airline from Portland to Great Falls. An alternate airline flying to your destination would be Alaska Airlines. Delta is priced at 41% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Great Falls 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 Portland to Great Falls?

    Currently, May is the cheapest month in which you can book a flight from Portland to Great Falls (average of $198). Flying from Portland to Great Falls in March is currently the most expensive (average of $342). 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 Great Falls?

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Top 2 airlines flying from Portland to Great Falls

Discover the top 2 airlines that operate flights from Portland to Great Falls. 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 diciembre 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$260Average$374FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$264Average$434FlexibilityNo cancel feeOn-time75%

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