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 $234. 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 52% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

If weather is an important factor for your trip to Portland, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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

When flying from Great Falls to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$234+ Flights from Great Falls to Portland

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

Airfare is below average for this route at the moment. Great Falls to Portland flights typically cost between $463 and $887 in January. The cheapest round-trip price found within the last 3 days was $234 on Alaska Airlines (Jan 10-Jan 12).

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1. Tell us where you want to go

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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 14, 2025.

Sat 12/277:21 pmGTF - PDX

1 stop4h 38mAlaska Airlines

Wed 12/313:59 pmPDX - GTF

1 stop25h 42mAlaska Airlines

Deal found 12/11

$656

Sat 12/206:18 pmGTF - PDX

1 stop5h 40mDelta

Mon 12/295:30 amPDX - GTF

1 stop6h 01mDelta

Deal found 12/12

$693

Best flights from Great Falls to Portland
Discover carefully curated flight deals from Great Falls to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Sat 1/105:59 pmGTF - PDX

1 stop3h 48mAlaska Airlines

Mon 1/121:38 pmPDX - GTF

1 stop26h 41mAlaska Airlines

Deal found 12/13

$234

Thu 1/86:10 pmGTF - PDX

1 stop5h 44mDelta

Sun 1/1110:00 amPDX - GTF

1 stop6h 30mDelta

Deal found 12/11

$327

Sat 1/175:59 pmGTF - PDX

1 stop19h 39mAlaska Airlines

Wed 1/217:10 amPDX - GTF

1 stop9h 09mAlaska Airlines

Deal found 12/12

$234

Thu 1/155:59 pmGTF - PDX

1 stop16h 30mAlaska Airlines

Sun 1/187:10 amPDX - GTF

1 stop9h 09mAlaska Airlines

Deal found 12/11

$254

Fri 2/204:57 pmGTF - PDX

1 stop6h 44mAlaska Airlines

Sun 2/228:30 amPDX - GTF

1 stop6h 47mAlaska Airlines

Deal found 12/13

$321

Last-minute flights from Great Falls to Portland
Discover last-minute flight deals from Great Falls to Portland. Data last updated December 14, 2025 and is based on user searches.

Thu 1/86:10 pmGTF - PDX

1 stop5h 44mDelta

Sun 1/1110:00 amPDX - GTF

1 stop6h 30mDelta

Deal found 12/11

$327

Thu 1/85:59 pmGTF - PDX

2 stops23h 51mAlaska Airlines

Sun 1/117:40 amPDX - GTF

2 stops8h 39mAlaska Airlines

Deal found 12/11

$393

Sat 1/105:59 pmGTF - PDX

1 stop3h 48mAlaska Airlines

Mon 1/121:38 pmPDX - GTF

1 stop26h 41mAlaska Airlines

Deal found 12/13

$234

Sat 1/105:30 amGTF - PDX

2 stops8h 14mDelta

Mon 1/127:10 amPDX - GTF

2 stops9h 20mDelta

Deal found 12/13

$602

Thu 1/155:59 pmGTF - PDX

1 stop16h 30mAlaska Airlines

Sun 1/187:10 amPDX - GTF

1 stop9h 09mAlaska Airlines

Deal found 12/11

$254

Sat 1/175:59 pmGTF - PDX

1 stop19h 39mAlaska Airlines

Wed 1/211:38 pmPDX - GTF

1 stop26h 41mAlaska Airlines

Deal found 12/13

$244

One-way flights from Great Falls to Portland
Search for one-way flight options from Great Falls to Portland. Find affordable one-way fares based on user searches. Data last updated December 14, 2025.

Fri 12/1910:25 pmGTF - PDX

2 stops19h 19mMultiple Airlines

Deal found 12/13

$310

Mon 12/2910:25 pmGTF - PDX

1 stop15h 59mMultiple Airlines

Deal found 12/13

$350

Sat 12/277:21 pmGTF - PDX

1 stop4h 38mAlaska Airlines

Deal found 12/13

$389

Fri 12/197:21 pmGTF - PDX

1 stop5h 51mAlaska Airlines

Deal found 12/13

$472

Sat 12/277:21 pmGTF - PDX

3 stops39h 09mMultiple Airlines

Deal found 12/13

$942

Find flight deals from Great Falls to Portland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$234 (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

Use the filters below to find and compare flights from Great Falls to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 1/10

5:59 pm-8:47 pm

1 stop3h 48m

Portland

Mon 1/12

1:38 pm-5:19 pm

1 stop26h 41m

$234

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 1/17

5:59 pm-12:38 pm

1 stop19h 39m

Portland

Wed 1/21

7:10 am-5:19 pm

1 stop9h 09m

$234

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/15

5:59 pm-9:29 am

1 stop16h 30m

Portland

Sun 1/18

7:10 am-5:19 pm

1 stop9h 09m

$254

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

$321

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/8

6:10 pm-10:54 pm

1 stop5h 44m

Portland

Sun 1/11

10:00 am-5:30 pm

1 stop6h 30m

$327

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 12/19

10:25 pm-4:44 pm

2 stops19h 19m

$310

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 12/29

10:25 pm-1:24 pm

1 stop15h 59m

$350

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 12/27

7:21 pm-10:59 pm

1 stop4h 38m

$389

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 12/19

7:21 pm-12:12 am

1 stop5h 51m

$472

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 12/27

7:21 pm-9:30 am

3 stops39h 09m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Compare providers for flights from Great Falls to Portland

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.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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

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

11,448 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Alaska Airlines

8.0

Very good

11,448 reviews

Alaska Airlines

8.0

Very good

11,448 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.9

Good

8,007 reviews

Alaska Airlines

8.0

Very good

11,448 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

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 $234. 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 52% 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.

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Other flights to Portland

Top 2 airlines flying from Great Falls to Portland

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$221	Average$610	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$264	Average$397	FlexibilityNo cancel fee	On-timeN/A

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$234+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Great Falls to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Great Falls to Portland

Cheapest flights from Great Falls to PortlandExplore 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 14, 2025.

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 14, 2025.

Find flight deals from Great Falls to Portland

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Great Falls to Portland that are best for you.

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.

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.

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?

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

Reviews of airlines servicing Portland

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.

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?

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

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

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

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

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

Traveling to a place near Portland?

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Alternative routes for Great Falls to Portland

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Top 2 airlines flying from Great Falls to Portland

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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 14, 2025.