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Cheap flights from Great Falls to Portland from $326

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 5/13. 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.
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
$326Delta
Wed, May 13 - Wed, May 20
Alaska Airlines Logo
6:15 pm - 10:53 pm
GTF
-
PDX
5h 38m
1 stop
Alaska Airlines Logo
5:00 am - 6:12 pm
PDX
-
GTF
12h 12m
1 stop
$340Alaska Airlines
Mon, May 11 - Mon, May 18
Multiple Airlines Logo
9:26 pm - 4:46 pm
GTF
-
PDX
20h 20m
2 stops
Multiple Airlines Logo
9:46 pm - 10:52 am
PDX
-
GTF
12h 06m
1 stop
$366Multiple Airlines
Sun, May 10 - Sun, May 17
Alaska Airlines Logo
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
5:00 am - 6:12 pm
PDX
-
GTF
12h 12m
1 stop
$385Alaska Airlines
Tue, Jun 2 - Tue, Jun 9
Alaska Airlines Logo
6:15 pm - 7:34 pm
GTF
-
PDX
26h 19m
1 stop
Alaska Airlines Logo
5:00 am - 6:12 pm
PDX
-
GTF
12h 12m
1 stop
$392Alaska Airlines
Sun, May 10 - Sun, May 17
Alaska Airlines Logo
6:15 pm - 6:08 am
GTF
-
PDX
12h 53m
2 stops
Alaska Airlines Logo
5:00 am - 6:12 pm
PDX
-
GTF
12h 12m
1 stop
$399Alaska Airlines
Mon, May 11 - Mon, May 18
Alaska Airlines Logo
5:19 pm - 7:50 pm
GTF
-
PDX
3h 31m
1 stop
Alaska Airlines Logo
12:02 pm - 4:39 pm
PDX
-
GTF
3h 37m
1 stop
$424Alaska Airlines
Tue, Sep 22 - Sat, Sep 26
Alaska Airlines Logo
6:52 pm - 6:16 am
GTF
-
PDX
12h 24m
2 stops
Alaska Airlines Logo
9:35 pm - 4:29 pm
PDX
-
GTF
17h 54m
1 stop
$444Alaska Airlines
Tue, Jun 2 - Tue, Jun 9
Alaska Airlines Logo
6:52 pm - 8:02 am
GTF
-
PDX
14h 10m
1 stop
Alaska Airlines Logo
2:35 pm - 6:12 pm
PDX
-
GTF
26h 37m
2 stops
$451Alaska Airlines
Wed, May 13 - Wed, May 20
Alaska Airlines Logo
6:15 pm - 4:50 pm
GTF
-
PDX
23h 35m
2 stops
Alaska Airlines Logo
2:35 pm - 6:12 pm
PDX
-
GTF
26h 37m
2 stops
$459Alaska Airlines
Mon, May 11 - Mon, May 18

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
May 11
GTF6:15 pmGreat Falls
5h 38m
1 stop
PDX10:53 pmPortland
May 18
PDX5:00 amPortland
12h 12m
1 stop
GTF6:12 pmGreat Falls
$340
Alaska Airlines
Jun 2
GTF6:52 pmGreat Falls
3h 36m
1 stop
PDX9:28 pmPortland
Jun 9
PDX5:00 amPortland
12h 12m
1 stop
GTF6:12 pmGreat Falls
$385
Alaska Airlines
May 10
GTF6:15 pmGreat Falls
26h 19m
1 stop
PDX7:34 pmPortland
May 17
PDX5:00 amPortland
12h 12m
1 stop
GTF6:12 pmGreat Falls
$392

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
May 13
GTF6:19 pmGreat Falls
6h 25m
1 stop
PDX11:44 pmPortland
May 20
PDX5:05 pmPortland
4h 21m
1 stop
GTF10:26 pmGreat Falls
$326
Delta
May 1
GTF6:20 pmGreat Falls
6h 33m
1 stop
PDX11:53 pmPortland
May 12
PDX5:45 amPortland
5h 42m
1 stop
GTF12:27 pmGreat Falls
$461
Delta
May 1
GTF6:20 pmGreat Falls
6h 33m
1 stop
PDX11:53 pmPortland
May 8
PDX5:05 pmPortland
4h 21m
1 stop
GTF10:26 pmGreat Falls
$468

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 April 15, 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 5/13

6:19 pm-11:44 pm

1 stop6h 25m

Portland

Wed 5/20

5:05 pm-10:26 pm

1 stop4h 21m

$326

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 5/11

6:15 pm-10:53 pm

1 stop5h 38m

Portland

Mon 5/18

5:00 am-6:12 pm

1 stop12h 12m

$340

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sun 5/10

9:26 pm-4:46 pm

2 stops20h 20m

Portland

Sun 5/17

9:46 pm-10:52 am

1 stop12h 06m

$366

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 6/2

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Tue 6/9

5:00 am-6:12 pm

1 stop12h 12m

$385

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sun 5/10

6:15 pm-7:34 pm

1 stop26h 19m

Portland

Sun 5/17

5:00 am-6:12 pm

1 stop12h 12m

$392

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 5/11

6:15 pm-6:08 am

2 stops12h 53m

Portland

Mon 5/18

5:00 am-6:12 pm

1 stop12h 12m

$399
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 9/22

5:19 pm-7:50 pm

1 stop3h 31m

Portland

Sat 9/26

12:02 pm-4:39 pm

1 stop3h 37m

$424

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 6/2

6:52 pm-6:16 am

2 stops12h 24m

Portland

Tue 6/9

9:35 pm-4:29 pm

1 stop17h 54m

$444

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 5/13

6:52 pm-8:02 am

1 stop14h 10m

Portland

Wed 5/20

2:35 pm-6:12 pm

2 stops26h 37m

$451

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 5/11

6:15 pm-4:50 pm

2 stops23h 35m

Portland

Mon 5/18

2:35 pm-6:12 pm

2 stops26h 37m

$459

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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?

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

You could potentially save up to 19% 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

3h 57m

Direct flights

None
The fastest flight from Great Falls to Portland takes 3h 57m
There are no direct flights from Great Falls to Portland. There are no popular flight routes from Great Falls to Portland.
Search flight deals

Frequently asked questions about flying from Great Falls to Portland

  • 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 3h 57m.

  • 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
8,406 reviews
Search Delta flights
Alaska AirlinesPriceFrom $284Free CancellationRating
7.9
12,234 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
Beaverton
Depoe Bay
Hillsboro
Tigard
Longview
Hood River
Newberg
Troutdale
McMinnville
Manzanita
The Dalles
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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