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Cheap flights from Great Falls to Portland from $254

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Portland departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Alaska Airlines Logo
5:59 pm - 9:29 am
GTF
-
PDX
16h 30m1 stop
Alaska Airlines Logo
7:10 am - 5:19 pm
PDX
-
GTF
9h 09m1 stop
$254Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
5:59 pm - 6:14 am
GTF
-
PDX
13h 15m2 stops
Alaska Airlines Logo
5:35 pm - 5:19 pm
PDX
-
GTF
22h 44m1 stop
$302Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
5:59 pm - 10:46 pm
GTF
-
PDX
5h 47m1 stop
Alaska Airlines Logo
7:40 am - 5:19 pm
PDX
-
GTF
8h 39m2 stops
$303Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
4:57 pm - 10:41 pm
GTF
-
PDX
6h 44m1 stop
Alaska Airlines Logo
8:30 am - 4:17 pm
PDX
-
GTF
6h 47m1 stop
$321Alaska Airlines
Fri, Feb 20 - Sun, Feb 22
Alaska Airlines Logo
4:57 pm - 10:46 am
GTF
-
PDX
18h 49m1 stop
Alaska Airlines Logo
9:55 pm - 4:17 pm
PDX
-
GTF
41h 22m2 stops
$332Alaska Airlines
Fri, Feb 20 - Sun, Feb 22
Delta Logo
6:10 pm - 8:31 am
GTF
-
PDX
15h 21m2 stops
Delta Logo
7:35 pm - 5:28 pm
PDX
-
GTF
20h 53m2 stops
$345Delta
Thu, Feb 19 - Sun, Feb 22
Alaska Airlines Logo
5:59 pm - 4:50 pm
GTF
-
PDX
23h 51m2 stops
Alaska Airlines Logo
2:30 pm - 5:19 pm
PDX
-
GTF
25h 49m2 stops
$350Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
5:59 pm - 6:14 am
GTF
-
PDX
13h 15m2 stops
Alaska Airlines Logo
7:40 am - 5:19 pm
PDX
-
GTF
8h 39m2 stops
$351Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
Delta Logo
6:10 pm - 11:53 pm
GTF
-
PDX
6h 43m1 stop
Delta Logo
7:35 pm - 5:28 pm
PDX
-
GTF
20h 53m2 stops
$361Delta
Thu, Feb 19 - Sun, Feb 22
Alaska Airlines Logo
4:57 pm - 6:28 am
GTF
-
PDX
14h 31m2 stops
Alaska Airlines Logo
9:55 pm - 4:17 pm
PDX
-
GTF
41h 22m2 stops
$390Alaska Airlines
Fri, Feb 20 - Sun, Feb 22

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Feb 19
GTF6:10 pmGreat Falls
15h 21m
2 stops
PDX8:31 amPortland
Feb 22
PDX7:35 pmPortland
20h 53m
2 stops
GTF5:28 pmGreat Falls
$345
Find similar
Delta
Feb 19
GTF6:10 pmGreat Falls
6h 43m
1 stop
PDX11:53 pmPortland
Feb 22
PDX7:35 pmPortland
20h 53m
2 stops
GTF5:28 pmGreat Falls
$361
Find similar
Delta
Dec 25
GTF1:11 pmGreat Falls
8h 25m
2 stops
PDX8:36 pmPortland
Dec 29
PDX5:30 amPortland
6h 01m
1 stop
GTF12:31 pmGreat Falls
$614
Find similar

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
Jan 15
GTF5:59 pmGreat Falls
16h 30m
1 stop
PDX9:29 amPortland
Jan 18
PDX7:10 amPortland
9h 09m
1 stop
GTF5:19 pmGreat Falls
$254
Find similar
Alaska Airlines
Jan 7
GTF5:59 pmGreat Falls
19h 39m
1 stop
PDX12:38 pmPortland
Jan 9
PDX7:40 amPortland
32h 39m
2 stops
GTF5:19 pmGreat Falls
$271
Find similar
Alaska Airlines
Jan 15
GTF5:59 pmGreat Falls
13h 15m
2 stops
PDX6:14 amPortland
Jan 18
PDX5:35 pmPortland
22h 44m
1 stop
GTF5:19 pmGreat Falls
$302
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 December 11, 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 1/15

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

Thu 1/15

5:59 pm-6:14 am

2 stops13h 15m

Portland

Sun 1/18

5:35 pm-5:19 pm

1 stop22h 44m

$302

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/15

5:59 pm-10:46 pm

1 stop5h 47m

Portland

Sun 1/18

7:40 am-5:19 pm

2 stops8h 39m

$303

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

Fri 2/20

4:57 pm-10:46 am

1 stop18h 49m

Portland

Sun 2/22

9:55 pm-4:17 pm

2 stops41h 22m

$332

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 2/19

6:10 pm-8:31 am

2 stops15h 21m

Portland

Sun 2/22

7:35 pm-5:28 pm

2 stops20h 53m

$345

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/15

5:59 pm-4:50 pm

2 stops23h 51m

Portland

Sun 1/18

2:30 pm-5:19 pm

2 stops25h 49m

$350

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 1/15

5:59 pm-6:14 am

2 stops13h 15m

Portland

Sun 1/18

7:40 am-5:19 pm

2 stops8h 39m

$351

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 2/19

6:10 pm-11:53 pm

1 stop6h 43m

Portland

Sun 2/22

7:35 pm-5:28 pm

2 stops20h 53m

$361

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 2/20

4:57 pm-6:28 am

2 stops14h 31m

Portland

Sun 2/22

9:55 pm-4:17 pm

2 stops41h 22m

$390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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.

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

You could potentially save up to 26% 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

6h 43m

Direct flights

None
The fastest flight from Great Falls to Portland takes 6h 43m
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 6h 43m.

  • 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
11,429 reviews
Search Alaska Airlines flights
DeltaPriceFrom $264Free CancellationRating
7.9
8,008 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
McMinnville
Gresham
Longview
Tigard
The Dalles
Pacific City
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.

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