Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Great Falls to Portland from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Portland departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Great Falls to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:59 pm - 10:46 pmGTF-PDX
5h 47m1 stop
Alaska Airlines Logo
9:10 am - 5:19 pmPDX-GTF
7h 09m1 stop
$254Alaska Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
Alaska Airlines Logo
5:59 pm - 9:45 amGTF-PDX
40h 46m2 stops
Alaska Airlines Logo
7:10 am - 5:19 pmPDX-GTF
9h 09m1 stop
$291Alaska Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
Delta Logo
1:15 pm - 8:59 pmGTF-PDX
8h 44m2 stops
Delta Logo
7:10 am - 5:30 pmPDX-GTF
9h 20m2 stops
$392Delta
Find Deal
Thu, Jan 8 - Sun, Jan 11
Hawaiian Airlines Logo
4:00 pm - 8:43 pmGTF-PDX
5h 43m1 stop
Hawaiian Airlines Logo
8:40 am - 3:20 pmPDX-GTF
5h 40m1 stop
$406Hawaiian Airlines
Find Deal
Mon, Mar 23 - Fri, Mar 27
Delta Logo
1:10 pm - 4:31 pmGTF-PDX
4h 21m1 stop
Delta Logo
7:10 am - 5:44 pmPDX-GTF
9h 34m2 stops
$412Delta
Find Deal
Mon, Mar 23 - Fri, Mar 27
Alaska Airlines Logo
4:00 pm - 1:19 pmGTF-PDX
22h 19m2 stops
Alaska Airlines Logo
8:40 am - 3:20 pmPDX-GTF
5h 40m1 stop
$420Alaska Airlines
Find Deal
Mon, Mar 23 - Fri, Mar 27
Delta Logo
1:10 pm - 7:11 pmGTF-PDX
7h 01m2 stops
Delta Logo
7:10 am - 5:44 pmPDX-GTF
9h 34m2 stops
$429Delta
Find Deal
Mon, Mar 23 - Fri, Mar 27
Delta Logo
1:10 pm - 8:47 pmGTF-PDX
8h 37m2 stops
Delta Logo
7:10 am - 5:44 pmPDX-GTF
9h 34m2 stops
$441Delta
Find Deal
Mon, Mar 23 - Fri, Mar 27
Delta Logo
6:18 pm - 11:59 pmGTF-PDX
6h 41m1 stop
Delta Logo
5:30 am - 12:31 pmPDX-GTF
6h 01m1 stop
$588Delta
Find Deal
Fri, Dec 26 - Mon, Dec 29
Alaska Airlines Logo
7:42 pm - 12:18 amGTF-PDX
5h 36m1 stop
Alaska Airlines Logo
10:30 pm - 7:02 pmPDX-GTF
19h 32m1 stop
$620Alaska Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
Jan 8
GTF5:59 pmGreat Falls
5h 47m
1 stop
PDX10:46 pmPortland
Jan 11
PDX9:10 amPortland
7h 09m
1 stop
GTF5:19 pmGreat Falls
$254
Find similar
Alaska Airlines
Jan 8
GTF5:59 pmGreat Falls
40h 46m
2 stops
PDX9:45 amPortland
Jan 11
PDX7:10 amPortland
9h 09m
1 stop
GTF5:19 pmGreat Falls
$291
Find similar
Alaska Airlines
Nov 28
GTF7:42 pmGreat Falls
4h 18m
1 stop
PDX11:00 pmPortland
Dec 2
PDX1:34 pmPortland
4h 21m
1 stop
GTF6:55 pmGreat Falls
$597
Find similar

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Jan 8
GTF1:15 pmGreat Falls
8h 44m
2 stops
PDX8:59 pmPortland
Jan 11
PDX7:10 amPortland
9h 20m
2 stops
GTF5:30 pmGreat Falls
$392
Find similar
Delta
Dec 26
GTF6:18 pmGreat Falls
6h 41m
1 stop
PDX11:59 pmPortland
Dec 29
PDX5:30 amPortland
6h 01m
1 stop
GTF12:31 pmGreat Falls
$588
Find similar
Delta
Dec 26
GTF6:18 pmGreat Falls
6h 41m
1 stop
PDX11:59 pmPortland
Dec 29
PDX6:50 amPortland
9h 48m
2 stops
GTF5:38 pmGreat Falls
$788
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Portland 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, momondo users made 832,500 searches. Data last updated November 13, 2025.
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

Thu 1/8

5:59 pm-10:46 pm

1 stop5h 47m

Portland

Sun 1/11

9:10 am-5:19 pm

1 stop7h 09m

$254

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/8

5:59 pm-9:45 am

2 stops40h 46m

Portland

Sun 1/11

7:10 am-5:19 pm

1 stop9h 09m

$291

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/8

1:15 pm-8:59 pm

2 stops8h 44m

Portland

Sun 1/11

7:10 am-5:30 pm

2 stops9h 20m

$392

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 3/23

4:00 pm-8:43 pm

1 stop5h 43m

Portland

Fri 3/27

8:40 am-3:20 pm

1 stop5h 40m

$406

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 3/23

1:10 pm-4:31 pm

1 stop4h 21m

Portland

Fri 3/27

7:10 am-5:44 pm

2 stops9h 34m

$412

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 3/23

4:00 pm-1:19 pm

2 stops22h 19m

Portland

Fri 3/27

8:40 am-3:20 pm

1 stop5h 40m

$420

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 3/23

1:10 pm-7:11 pm

2 stops7h 01m

Portland

Fri 3/27

7:10 am-5:44 pm

2 stops9h 34m

$429

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 3/23

1:10 pm-8:47 pm

2 stops8h 37m

Portland

Fri 3/27

7:10 am-5:44 pm

2 stops9h 34m

$441

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 12/26

6:18 pm-11:59 pm

1 stop6h 41m

Portland

Mon 12/29

5:30 am-12:31 pm

1 stop6h 01m

$588

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 11/26

7:42 pm-12:18 am

1 stop5h 36m

Portland

Sun 11/30

10:30 pm-7:02 pm

1 stop19h 32m

$620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Portland from

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

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

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Thursday 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. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $541.

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

The cheapest time of day to fly to Portland is in the morning when flights can be purchased for as low as $374. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $404 per ticket.

When to book flights from Great Falls to Portland

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

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

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

Direct flights

None
There are no direct flights from Great Falls to Portland. There are no popular flight routes from Great Falls to Portland.
Search flight deals

  • How far is Great Falls to Portland by plane?

    Great Falls and Portland are 556.9 mi apart from one another. A reasonable flight in good conditions will take 4h 18m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Great Falls to Portland?

Best airlines flying from Great Falls to Portland

Compare and see reviews for airlines that fly from Great Falls to Portland with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $221Free CancellationRating
8.0
11,281 reviews
Search Alaska Airlines flights
DeltaPriceFrom $264Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
Gresham
McMinnville
Longview
The Dalles
Pacific City
Tigard
Manzanita
Tillamook

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from Great Falls.

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

Yes. momondo enables you to select and highlight flights to Portland from Great Falls with this policy.

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

momondo helps you find the best flight between Great Falls and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Great Falls and alert you when they change.

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/13
Sat 12/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States