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$118+ Cheap flights from Portland to Great Falls (PDX - GTF)

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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GTF
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap 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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(Delta)

One-way from

$118
(Mytrip)

Popular in

February

Cheapest in

August

Average price

$361
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
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One-way flight from Portland to Great Falls
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Highest demand for flights based on searches. 11% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 30, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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 6/115:30 amPDX - GTF
1 stop4h 32mDelta
Sun 6/155:42 amGTF - PDX
1 stop4h 13mDelta
Deal found 4/28$274
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/91:25 pmPDX - GTF
1 stop26h 04mAlaska Airlines
Thu 6/124:55 pmGTF - PDX
1 stop5h 18mAlaska Airlines
Deal found 4/28$375
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/303:42 pmPDX - GTF
2 stops20h 45mUnited Airlines
Mon 6/22:26 pmGTF - PDX
3 stops22h 56mUnited Airlines
Deal found 4/28$523

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 April 30, 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

Wed 6/11

5:30 am-11:02 am

1 stop4h 32m

Great Falls

Sun 6/15

5:42 am-8:55 am

1 stop4h 13m

$274

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Mon 6/9

1:25 pm-4:29 pm

1 stop26h 04m

Great Falls

Thu 6/12

4:55 pm-9:13 pm

1 stop5h 18m

$375

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Fri 5/30

3:42 pm-1:27 pm

2 stops20h 45m

Great Falls

Mon 6/2

2:26 pm-12:22 pm

3 stops22h 56m

$523

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Thu 5/22

5:40 pm-3:37 pm

1 stop20h 57m

$118

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Thu 5/22

10:41 am-3:37 pm

2 stops27h 56m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Great Falls flight deals on Cheapflights vs. FlightHub >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, January is the cheapest month in which you can book a flight from Portland to Great Falls (average of $367). Flying from Portland to Great Falls in June is currently the most expensive (average of $579). 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 April 30, 2025.

It’s optimal to fly from Portland to Great Falls at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the morning.

Rainfall in Great Falls by month

Plan your trip to Great Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

Temperature in Great Falls by month

Plan your trip to Great Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Great Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 April 30, 2025.
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Delta, at $274, was found to be the cheapest airline from Portland to Great Falls. An alternate airline flying to your destination would be United Airlines. Delta is priced at 32% 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, January is the cheapest month in which you can book a flight from Portland to Great Falls (average of $367). Flying from Portland to Great Falls in June is currently the most expensive (average of $579). 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

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$244Average$426FlexibilityNo cancel feeOn-time75%
DeltaCheapest$278Average$364FlexibilityNo cancel feeOn-timeN/A

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