What is the cheapest airline that flies from Portland to Great Falls?

Delta and United Airlines are the most popular carriers operating from Portland to Great Falls

When did momondo last update prices for flights from Portland Airport to Great Falls Airport?

Prices for flights from Portland Airport to Great Falls Airport refresh daily.

How many operators does momondo search for flights from Portland Airport to Great Falls Airport?

The number of operators available for flights from Portland Airport to Great Falls Airport is 2 as of August 2025.

How old do you have to be to fly from Portland Airport to Great Falls Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$222 Cheap Flights from Portland to Great Falls (PDX-GTF) in 2025

Q: What is the typical price of a round-trip flight between Portland and Great Falls?

Prices are currently low for flights on this route. Typical prices usually range from $390 to $524. The lowest price recently found on this route was $315.

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Find the cheapest flights from Portland to Great Falls (PDX-GTF)

Round-trip

One-way

Cheap round-trip flights

10:00 pm - 5:35 pmPDX-GTF

18h 35m1 stop

6:15 pm - 10:45 pmGTF-PDX

5h 30m1 stop

$315Alaska Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 15

7:20 am - 5:35 pmPDX-GTF

9h 15m1 stop

6:15 pm - 10:45 pmGTF-PDX

5h 30m1 stop

$331Alaska Airlines

Find Deal

Sun, Oct 5 - Wed, Oct 15

9:42 am - 5:35 pmPDX-GTF

6h 53m1 stop

6:15 pm - 10:45 pmGTF-PDX

5h 30m1 stop

$348Alaska Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 15

5:40 am - 12:28 pmPDX-GTF

5h 48m1 stop

6:09 pm - 11:57 pmGTF-PDX

6h 48m2 stops

$369Delta

Find Deal

Tue, Oct 7 - Thu, Oct 16

10:00 pm - 5:35 pmPDX-GTF

18h 35m1 stop

6:15 pm - 1:34 pmGTF-PDX

20h 19m2 stops

$377Alaska Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 15

9:42 am - 5:35 pmPDX-GTF

6h 53m1 stop

6:15 pm - 4:58 pmGTF-PDX

23h 43m2 stops

$380Alaska Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 15

10:00 pm - 5:35 pmPDX-GTF

18h 35m1 stop

6:15 pm - 6:20 amGTF-PDX

13h 05m2 stops

$391Alaska Airlines

Find Deal

Sun, Oct 5 - Wed, Oct 15

5:30 am - 5:29 pmPDX-GTF

10h 59m2 stops

6:09 pm - 11:57 pmGTF-PDX

6h 48m2 stops

$403Delta

Find Deal

Tue, Oct 7 - Thu, Oct 16

10:35 am - 5:35 pmPDX-GTF

6h 00m1 stop

6:15 pm - 10:45 pmGTF-PDX

5h 30m1 stop

$448Hawaiian Airlines

Find Deal

Tue, Oct 7 - Thu, Oct 16

5:30 am - 9:28 pmPDX-GTF

14h 58m2 stops

2:35 pm - 11:39 amGTF-PDX

22h 04m2 stops

$853United Airlines

Find Deal

Sun, Aug 31 - Thu, Sep 4

Alaska Airlines flights from Portland to Great Falls

Our best Alaska Airlines deals on Portland to Great Falls flight tickets

Alaska Airlines

Oct 8

PDX10:00 pmPortland

18h 35m

1 stop

GTF5:35 pmGreat Falls

Oct 15

GTF6:15 pmGreat Falls

5h 30m

1 stop

PDX10:45 pmPortland

$315

Find similar

Alaska Airlines

Oct 5

PDX7:20 amPortland

9h 15m

1 stop

GTF5:35 pmGreat Falls

Oct 15

GTF6:15 pmGreat Falls

5h 30m

1 stop

PDX10:45 pmPortland

$331

Find similar

Alaska Airlines

Oct 7

PDX9:42 amPortland

6h 53m

1 stop

GTF5:35 pmGreat Falls

Oct 15

GTF6:15 pmGreat Falls

5h 30m

1 stop

PDX10:45 pmPortland

$348

Find similar

Delta flights from Portland to Great Falls

Our best Delta deals on Portland to Great Falls flight tickets

Delta

Oct 7

PDX5:40 amPortland

5h 48m

1 stop

GTF12:28 pmGreat Falls

Oct 16

GTF6:09 pmGreat Falls

6h 48m

2 stops

PDX11:57 pmPortland

$369

Find similar

Delta

Oct 7

PDX5:30 amPortland

10h 59m

2 stops

GTF5:29 pmGreat Falls

Oct 16

GTF6:09 pmGreat Falls

6h 48m

2 stops

PDX11:57 pmPortland

$403

Find similar

Delta

Oct 15

PDX5:40 amPortland

5h 48m

1 stop

GTF12:28 pmGreat Falls

Oct 15

GTF6:09 pmGreat Falls

6h 34m

1 stop

PDX11:43 pmPortland

$427

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Wed 10/8

10:00 pm-5:35 pm

1 stop18h 35m

Great Falls

Wed 10/15

6:15 pm-10:45 pm

1 stop5h 30m

$315

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sun 10/5

7:20 am-5:35 pm

1 stop9h 15m

Great Falls

Wed 10/15

6:15 pm-10:45 pm

1 stop5h 30m

$331

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 10/7

9:42 am-5:35 pm

1 stop6h 53m

Great Falls

Wed 10/15

6:15 pm-10:45 pm

1 stop5h 30m

$348

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 10/7

5:40 am-12:28 pm

1 stop5h 48m

Great Falls

Thu 10/16

6:09 pm-11:57 pm

2 stops6h 48m

$369

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Wed 10/8

10:00 pm-5:35 pm

1 stop18h 35m

Great Falls

Wed 10/15

6:15 pm-1:34 pm

2 stops20h 19m

$377

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 10/7

9:42 am-5:35 pm

1 stop6h 53m

Great Falls

Wed 10/15

6:15 pm-4:58 pm

2 stops23h 43m

$380

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sun 10/5

10:00 pm-5:35 pm

1 stop18h 35m

Great Falls

Wed 10/15

6:15 pm-6:20 am

2 stops13h 05m

$391

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 10/7

5:30 am-5:29 pm

2 stops10h 59m

Great Falls

Thu 10/16

6:09 pm-11:57 pm

2 stops6h 48m

$403

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 10/7

10:35 am-5:35 pm

1 stop6h 00m

Great Falls

Thu 10/16

6:15 pm-10:45 pm

1 stop5h 30m

$448

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sun 8/31

5:30 am-9:28 pm

2 stops14h 58m

Great Falls

Thu 9/4

2:35 pm-11:39 am

2 stops22h 04m

$853

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Portland and Great Falls?

What is the cheapest month to fly to Great Falls?

The month of May is another great option to travel to Great Falls, with average flight prices from Portland averaging around $345.

What is the cheapest day to depart on your flight to Great Falls?

The cheapest day to depart on your flight to Great Falls is on a Saturday when prices can be found for as low as $307. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $428.

What is the cheapest time of day to depart on your flight to Great Falls?

According to our data, the cheapest time of day to fly to Great Falls is in the afternoon. momondo users have found flights departing from Portland to Great Falls in the afternoon for as low as $341. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $367 on average. Flights to Great Falls from Portland in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Portland to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Great Falls (PDX to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Great Falls

Best Price Found	$250
Fastest flight time	4h 39m
Direct flights	None
Airports in Great Falls	1 airport

The best one-way flight to Great Falls from Portland in the past 72 hours is $250. The best round-trip flight deal from Portland to Great Falls found on momondo in the last 72 hours is $315.

The fastest flight from Portland to Great Falls takes 4h 39m

There are no direct flights from Portland to Great Falls. Popular non-direct route for this connection is Portland Airport - Great Falls Airport.

There is 1 airport near Great Falls: Great Falls (GTF)

Search flight deals

How far is Portland to Great Falls by plane?
Portland and Great Falls are 556.9 mi apart from one another. 4h 39m is a normal flight duration for this route.
When did momondo last update prices for flights from Portland Airport to Great Falls Airport?
Prices for flights from Portland Airport to Great Falls Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Great Falls Airport?
The number of operators available for flights from Portland Airport to Great Falls Airport is 2 as of August 2025.
How old do you have to be to fly from Portland Airport to Great Falls Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Portland to Great Falls?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Great Falls is Delta (62% of total bookings). The next most popular airline is Alaska Airlines (38%).

Best airlines flying from Portland to Great Falls

Compare and see reviews for airlines that fly from Portland to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $233	Free Cancellation	Rating 8.0 10,000 reviews		Search Alaska Airlines flights
Delta	PriceFrom $291	Free Cancellation	Rating 8.0 7,981 reviews		Search Delta flights

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Why use momondo?

Why should I use momondo to find a flight deal from Portland to Great Falls?

It is quick and easy to find Portland to Great Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Great Falls that suits you.

Can I find flights from Portland to Great Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Great Falls from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Great Falls?

Once you have performed a search for Portland to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Great Falls right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Great Falls from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.