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 October 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 in 2025/26

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Find the cheapest flights from Portland to Great Falls

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One-way

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Cheap round-trip flights

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1:30 pm - 11:06 pmPDX-GTF

8h 36m2 stops

6:10 pm - 11:58 pmGTF-PDX

6h 48m1 stop

$253Delta

Find Deal

Sat, Nov 8 - Tue, Nov 11

5:40 am - 12:28 pmPDX-GTF

5h 48m1 stop

6:10 pm - 11:58 pmGTF-PDX

6h 48m1 stop

$260Delta

Find Deal

Sat, Nov 8 - Tue, Nov 11

11:45 am - 9:32 pmPDX-GTF

8h 47m1 stop

10:27 pm - 12:56 pmGTF-PDX

39h 29m2 stops

$277Multiple Airlines

Find Deal

Mon, Oct 27 - Fri, Oct 31

6:00 am - 12:32 pmPDX-GTF

5h 32m1 stop

6:15 pm - 11:54 pmGTF-PDX

6h 39m1 stop

$366Delta

Find Deal

Tue, Apr 7 - Wed, Apr 8

7:10 am - 5:44 pmPDX-GTF

9h 34m2 stops

5:30 am - 9:19 amGTF-PDX

4h 49m1 stop

$372Delta

Find Deal

Tue, Apr 7 - Wed, Apr 8

1:38 pm - 10:53 pmPDX-GTF

8h 15m2 stops

1:10 pm - 8:47 pmGTF-PDX

8h 37m2 stops

$377Delta

Find Deal

Tue, Apr 7 - Wed, Apr 8

10:06 am - 2:02 pmPDX-GTF

26h 56m1 stop

10:25 pm - 4:20 pmGTF-PDX

18h 55m2 stops

$384Multiple Airlines

Find Deal

Tue, Nov 25 - Sun, Nov 30

2:15 pm - 7:02 pmPDX-GTF

3h 47m1 stop

7:42 pm - 11:00 pmGTF-PDX

4h 18m1 stop

$392Alaska Airlines

Find Deal

Wed, Nov 26 - Mon, Dec 1

2:15 pm - 7:02 pmPDX-GTF

3h 47m1 stop

7:42 pm - 11:00 pmGTF-PDX

4h 18m1 stop

$395Alaska Airlines

Find Deal

Sun, Nov 23 - Mon, Dec 1

6:00 am - 1:27 pmPDX-GTF

30h 27m3 stops

2:30 pm - 9:38 amGTF-PDX

20h 08m1 stop

$686United Airlines

Find Deal

Mon, Oct 27 - Fri, Oct 31

Delta flights from Portland to Great Falls

Our best Delta deals on Portland to Great Falls flight tickets

Delta

Nov 8

PDX1:30 pmPortland

8h 36m

2 stops

GTF11:06 pmGreat Falls

Nov 11

GTF6:10 pmGreat Falls

6h 48m

1 stop

PDX11:58 pmPortland

$253

Find similar

Delta

Nov 8

PDX5:40 amPortland

5h 48m

1 stop

GTF12:28 pmGreat Falls

Nov 11

GTF6:10 pmGreat Falls

6h 48m

1 stop

PDX11:58 pmPortland

$260

Find similar

Delta

Apr 7

PDX6:00 amPortland

5h 32m

1 stop

GTF12:32 pmGreat Falls

Apr 8

GTF6:15 pmGreat Falls

6h 39m

1 stop

PDX11:54 pmPortland

$366

Find similar

Alaska Airlines flights from Portland to Great Falls

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

Alaska Airlines

Nov 26

PDX2:15 pmPortland

3h 47m

1 stop

GTF7:02 pmGreat Falls

Dec 1

GTF7:42 pmGreat Falls

4h 18m

1 stop

PDX11:00 pmPortland

$392

Find similar

Alaska Airlines

Nov 23

PDX2:15 pmPortland

3h 47m

1 stop

GTF7:02 pmGreat Falls

Dec 1

GTF7:42 pmGreat Falls

4h 18m

1 stop

PDX11:00 pmPortland

$395

Find similar

Alaska Airlines

Nov 24

PDX2:15 pmPortland

3h 47m

1 stop

GTF7:02 pmGreat Falls

Dec 1

GTF7:42 pmGreat Falls

4h 18m

1 stop

PDX11:00 pmPortland

$468

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sat 11/8

1:30 pm-11:06 pm

2 stops8h 36m

Great Falls

Tue 11/11

6:10 pm-11:58 pm

1 stop6h 48m

$253

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sat 11/8

5:40 am-12:28 pm

1 stop5h 48m

Great Falls

Tue 11/11

6:10 pm-11:58 pm

1 stop6h 48m

$260

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Mon 10/27

11:45 am-9:32 pm

1 stop8h 47m

Great Falls

Fri 10/31

10:27 pm-12:56 pm

2 stops39h 29m

$277

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 4/7

6:00 am-12:32 pm

1 stop5h 32m

Great Falls

Wed 4/8

6:15 pm-11:54 pm

1 stop6h 39m

$366

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 4/7

7:10 am-5:44 pm

2 stops9h 34m

Great Falls

Wed 4/8

5:30 am-9:19 am

1 stop4h 49m

$372

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 4/7

1:38 pm-10:53 pm

2 stops8h 15m

Great Falls

Wed 4/8

1:10 pm-8:47 pm

2 stops8h 37m

$377

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Tue 11/25

10:06 am-2:02 pm

1 stop26h 56m

Great Falls

Sun 11/30

10:25 pm-4:20 pm

2 stops18h 55m

$384

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Wed 11/26

2:15 pm-7:02 pm

1 stop3h 47m

Great Falls

Mon 12/1

7:42 pm-11:00 pm

1 stop4h 18m

$392

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Sun 11/23

2:15 pm-7:02 pm

1 stop3h 47m

Great Falls

Mon 12/1

7:42 pm-11:00 pm

1 stop4h 18m

$395

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Mon 10/27

6:00 am-1:27 pm

3 stops30h 27m

Great Falls

Fri 10/31

2:30 pm-9:38 am

1 stop20h 08m

$686

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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

Direct flights	None

There are no direct flights from Portland to Great Falls. There are no popular flight routes from Portland to Great Falls.

Search flight deals

How far is Portland to Great Falls by plane?
Portland and Great Falls are 556.9 mi apart from one another. 3h 47m 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 October 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 (63% of total bookings). The next most popular airline is Alaska Airlines (37%).

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 $264	Free Cancellation	Rating 8.0 11,070 reviews		Search Alaska Airlines flights
Delta	PriceFrom $280	Free Cancellation	Rating 7.9 7,973 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.