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Cheap flights from Great Falls to Portland from $180

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 5/28. 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

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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
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
8:19 am - 4:29 pm
PDX
-
GTF
7h 10m
1 stop
$402Alaska Airlines
Thu, Jun 4 - Sat, Jun 20
Alaska Airlines Logo
5:09 pm - 10:25 pm
GTF
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
9:19 am - 4:29 pm
PDX
-
GTF
6h 10m
1 stop
$424Alaska Airlines
Tue, Jun 16 - Sat, Jun 20
Multiple Airlines Logo
10:18 am - 5:24 pm
GTF
-
PDX
8h 06m
1 stop
Multiple Airlines Logo
6:19 pm - 9:28 am
PDX
-
GTF
14h 09m
1 stop
$434Multiple Airlines
Fri, Jun 19 - Sun, Jun 21
Multiple Airlines Logo
10:18 am - 7:18 pm
GTF
-
PDX
10h 00m
2 stops
Multiple Airlines Logo
6:19 pm - 9:28 am
PDX
-
GTF
14h 09m
1 stop
$442Multiple Airlines
Fri, Jun 19 - Sun, Jun 21
Alaska Airlines Logo
5:09 pm - 10:25 pm
GTF
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
9:19 am - 4:29 pm
PDX
-
GTF
6h 10m
1 stop
$444Alaska Airlines
Fri, Jun 12 - Sat, Jun 20
Alaska Airlines Logo
5:19 pm - 10:58 pm
GTF
-
PDX
6h 39m
1 stop
Alaska Airlines Logo
11:24 am - 4:39 pm
PDX
-
GTF
28h 15m
2 stops
$454Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
Alaska Airlines Logo
5:09 pm - 10:25 pm
GTF
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
9:19 am - 4:29 pm
PDX
-
GTF
6h 10m
1 stop
$462Alaska Airlines
Tue, Jun 16 - Sun, Jun 21
Alaska Airlines Logo
5:09 pm - 10:25 pm
GTF
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
9:19 am - 4:29 pm
PDX
-
GTF
6h 10m
1 stop
$482Alaska Airlines
Fri, Jun 12 - Wed, Jun 24
Delta Logo
5:40 am - 8:37 am
GTF
-
PDX
3h 57m
1 stop
Delta Logo
7:21 pm - 10:40 pm
PDX
-
GTF
26h 19m
1 stop
$489Delta
Tue, Jun 16 - Thu, Jun 25
Alaska Airlines Logo
6:52 pm - 6:16 am
GTF
-
PDX
12h 24m
2 stops
Alaska Airlines Logo
9:19 am - 4:29 pm
PDX
-
GTF
6h 10m
1 stop
$491Alaska Airlines
Thu, Jun 4 - Sat, Jun 20

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Jun 16
GTF5:40 amGreat Falls
3h 57m
1 stop
PDX8:37 amPortland
Jun 25
PDX7:21 pmPortland
26h 19m
1 stop
GTF10:40 pmGreat Falls
$489
Delta
Jun 12
GTF6:35 pmGreat Falls
6h 11m
1 stop
PDX11:46 pmPortland
Jun 25
PDX7:21 pmPortland
26h 19m
1 stop
GTF10:40 pmGreat Falls
$509
Delta
Jun 16
GTF5:40 amGreat Falls
3h 57m
1 stop
PDX8:37 amPortland
Jun 20
PDX5:50 pmPortland
17h 50m
2 stops
GTF12:40 pmGreat Falls
$524

United Airlines flights from Great Falls to Portland

Our best United Airlines deals on Great Falls to Portland flight tickets
United Airlines
Jun 13
GTF6:15 amGreat Falls
17h 33m
2 stops
PDX10:48 pmPortland
Jun 23
PDX6:03 pmPortland
26h 31m
2 stops
GTF9:34 pmGreat Falls
$700
United Airlines
Jun 15
GTF6:15 amGreat Falls
19h 35m
2 stops
PDX12:50 amPortland
Jun 24
PDX5:00 amPortland
15h 34m
1 stop
GTF9:34 pmGreat Falls
$710
United Airlines
Jun 15
GTF6:15 amGreat Falls
19h 35m
2 stops
PDX12:50 amPortland
Jun 23
PDX6:03 pmPortland
26h 31m
2 stops
GTF9:34 pmGreat Falls
$715

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 26, 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
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 6/4

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Sat 6/20

8:19 am-4:29 pm

1 stop7h 10m

$402

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 6/16

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Sat 6/20

9:19 am-4:29 pm

1 stop6h 10m

$424

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 6/19

10:18 am-5:24 pm

1 stop8h 06m

Portland

Sun 6/21

6:19 pm-9:28 am

1 stop14h 09m

$434

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 6/19

10:18 am-7:18 pm

2 stops10h 00m

Portland

Sun 6/21

6:19 pm-9:28 am

1 stop14h 09m

$442

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 6/12

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Sat 6/20

9:19 am-4:29 pm

1 stop6h 10m

$444

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 9/10

5:19 pm-10:58 pm

1 stop6h 39m

Portland

Mon 9/14

11:24 am-4:39 pm

2 stops28h 15m

$454

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 6/16

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Sun 6/21

9:19 am-4:29 pm

1 stop6h 10m

$462

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 6/12

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Wed 6/24

9:19 am-4:29 pm

1 stop6h 10m

$482

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 6/16

5:40 am-8:37 am

1 stop3h 57m

Portland

Thu 6/25

7:21 pm-10:40 pm

1 stop26h 19m

$489

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 6/4

6:52 pm-6:16 am

2 stops12h 24m

Portland

Sat 6/20

9:19 am-4:29 pm

1 stop6h 10m

$491

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
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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 16% 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 12m

Direct flights

None
The fastest flight from Great Falls to Portland takes 4h 12m
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 4h 12m.

  • 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 $222Free CancellationRating
7.9
12,294 reviews
Search Alaska Airlines flights
DeltaPriceFrom $273Free CancellationRating
7.9
8,459 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
Rockaway Beach
Beaverton
Depoe Bay
Hillsboro
Tigard
Longview
Hood River
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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