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Cheap flights from Great Falls to Portland from $164

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 4/23. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Great Falls to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:22 pm - 11:54 pm
GTF
-
PDX
6h 32m
1 stop
Delta Logo
5:45 am - 12:24 pm
PDX
-
GTF
5h 39m
1 stop
$286Delta
Wed, Apr 8 - Sat, Apr 11
Delta Logo
6:22 pm - 11:54 pm
GTF
-
PDX
6h 32m
1 stop
Delta Logo
5:45 am - 12:27 pm
PDX
-
GTF
5h 42m
1 stop
$317Delta
Wed, Apr 8 - Tue, Apr 14
Alaska Airlines Logo
5:06 pm - 9:38 pm
GTF
-
PDX
5h 32m
1 stop
Alaska Airlines Logo
9:00 am - 4:26 pm
PDX
-
GTF
6h 26m
1 stop
$328Alaska Airlines
Wed, Apr 8 - Thu, Apr 9
Delta Logo
6:22 pm - 10:02 am
GTF
-
PDX
16h 40m
2 stops
Delta Logo
5:45 am - 12:24 pm
PDX
-
GTF
5h 39m
1 stop
$330Delta
Wed, Apr 8 - Sat, Apr 11
Alaska Airlines Logo
5:06 pm - 10:38 pm
GTF
-
PDX
6h 32m
1 stop
Alaska Airlines Logo
9:00 am - 4:26 pm
PDX
-
GTF
6h 26m
1 stop
$339Alaska Airlines
Thu, Apr 9 - Sat, Apr 11
Delta Logo
1:05 pm - 8:59 pm
GTF
-
PDX
8h 54m
2 stops
Delta Logo
5:45 am - 12:24 pm
PDX
-
GTF
5h 39m
1 stop
$350Delta
Thu, Apr 9 - Sat, Apr 11
Alaska Airlines Logo
5:06 pm - 10:38 pm
GTF
-
PDX
6h 32m
1 stop
Alaska Airlines Logo
9:00 am - 4:26 pm
PDX
-
GTF
6h 26m
1 stop
$360Alaska Airlines
Wed, Apr 8 - Fri, Apr 10
Alaska Airlines Logo
5:06 pm - 11:44 pm
GTF
-
PDX
7h 38m
1 stop
Alaska Airlines Logo
8:45 am - 5:35 pm
PDX
-
GTF
7h 50m
1 stop
$364Alaska Airlines
Sat, Apr 18 - Wed, Apr 22
Delta Logo
6:19 pm - 11:44 pm
GTF
-
PDX
6h 25m
1 stop
Delta Logo
5:05 pm - 10:26 pm
PDX
-
GTF
4h 21m
1 stop
$365Delta
Wed, May 20 - Fri, May 29
Delta Logo
6:22 pm - 11:54 pm
GTF
-
PDX
6h 32m
1 stop
Delta Logo
7:05 am - 5:42 pm
PDX
-
GTF
9h 37m
2 stops
$370Delta
Wed, Apr 8 - Thu, Apr 9

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Apr 8
GTF6:22 pmGreat Falls
6h 32m
1 stop
PDX11:54 pmPortland
Apr 11
PDX5:45 amPortland
5h 39m
1 stop
GTF12:24 pmGreat Falls
$286
Delta
Apr 8
GTF6:22 pmGreat Falls
6h 32m
1 stop
PDX11:54 pmPortland
Apr 14
PDX5:45 amPortland
5h 42m
1 stop
GTF12:27 pmGreat Falls
$317
Delta
Apr 8
GTF6:22 pmGreat Falls
16h 40m
2 stops
PDX10:02 amPortland
Apr 11
PDX5:45 amPortland
5h 39m
1 stop
GTF12:24 pmGreat Falls
$330

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
Apr 8
GTF5:06 pmGreat Falls
5h 32m
1 stop
PDX9:38 pmPortland
Apr 9
PDX9:00 amPortland
6h 26m
1 stop
GTF4:26 pmGreat Falls
$328
Alaska Airlines
Apr 9
GTF5:06 pmGreat Falls
6h 32m
1 stop
PDX10:38 pmPortland
Apr 11
PDX9:00 amPortland
6h 26m
1 stop
GTF4:26 pmGreat Falls
$339
Alaska Airlines
Apr 8
GTF5:06 pmGreat Falls
6h 32m
1 stop
PDX10:38 pmPortland
Apr 12
PDX9:00 amPortland
6h 26m
1 stop
GTF4:26 pmGreat Falls
$360

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 March 22, 2026.
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

Cheapest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

6:22 pm-11:54 pm

1 stop6h 32m

Portland

Sat 4/11

5:45 am-12:24 pm

1 stop5h 39m

$286

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

6:22 pm-11:54 pm

1 stop6h 32m

Portland

Tue 4/14

5:45 am-12:27 pm

1 stop5h 42m

$317

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

5:06 pm-9:38 pm

1 stop5h 32m

Portland

Thu 4/9

9:00 am-4:26 pm

1 stop6h 26m

$328

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

6:22 pm-10:02 am

2 stops16h 40m

Portland

Sat 4/11

5:45 am-12:24 pm

1 stop5h 39m

$330

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 4/9

5:06 pm-10:38 pm

1 stop6h 32m

Portland

Sat 4/11

9:00 am-4:26 pm

1 stop6h 26m

$339

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 4/9

1:05 pm-8:59 pm

2 stops8h 54m

Portland

Sat 4/11

5:45 am-12:24 pm

1 stop5h 39m

$350

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

5:06 pm-10:38 pm

1 stop6h 32m

Portland

Fri 4/10

9:00 am-4:26 pm

1 stop6h 26m

$360

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 4/18

5:06 pm-11:44 pm

1 stop7h 38m

Portland

Wed 4/22

8:45 am-5:35 pm

1 stop7h 50m

$364
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 5/20

6:19 pm-11:44 pm

1 stop6h 25m

Portland

Fri 5/29

5:05 pm-10:26 pm

1 stop4h 21m

$365

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/8

6:22 pm-11:54 pm

1 stop6h 32m

Portland

Thu 4/9

7:05 am-5:42 pm

2 stops9h 37m

$370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

Can stopping save me money on Great Falls to Portland flights?

You could potentially save up to 60% on your flight if you consider stops on a Great Falls to Portland flight.

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

Fastest flight time

4h 19m

Direct flights

None
The fastest flight from Great Falls to Portland takes 4h 19m
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 19m.

  • 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
DeltaPriceFrom $273Free CancellationRating
7.9
8,315 reviews
Search Delta flights
Alaska AirlinesPriceFrom $284Free CancellationRating
7.9
12,093 reviews
Search Alaska Airlines 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
Rockaway Beach
Depoe Bay
Beaverton
Hillsboro
Tigard
Hood River
Longview
Troutdale
Newberg
McMinnville
The Dalles
Manzanita
Pacific City

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.

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