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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 6/3. 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
5:00 am - 6:12 pm
PDX
-
GTF
12h 12m
1 stop
$366Alaska Airlines
Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
10:45 am - 4:39 pm
PDX
-
GTF
4h 54m
1 stop
$387Alaska Airlines
Wed, Jun 3 - Tue, Sep 15
Alaska Airlines Logo
6:52 pm - 11:59 pm
GTF
-
PDX
6h 07m
1 stop
Alaska Airlines Logo
11:45 am - 4:39 pm
PDX
-
GTF
3h 54m
1 stop
$397Alaska Airlines
Thu, Jun 4 - Tue, Sep 15
Alaska Airlines Logo
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
10:30 am - 6:12 pm
PDX
-
GTF
6h 42m
2 stops
$400Alaska Airlines
Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
6:52 pm - 11:59 pm
GTF
-
PDX
6h 07m
1 stop
Alaska Airlines Logo
10:30 am - 6:12 pm
PDX
-
GTF
6h 42m
2 stops
$402Alaska Airlines
Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
11:45 am - 4:39 pm
PDX
-
GTF
3h 54m
1 stop
$407Alaska Airlines
Wed, Jun 3 - Fri, Sep 11
Alaska Airlines Logo
6:52 pm - 11:59 pm
GTF
-
PDX
6h 07m
1 stop
Alaska Airlines Logo
9:20 am - 4:39 pm
PDX
-
GTF
6h 19m
1 stop
$417Alaska Airlines
Thu, Jun 4 - Fri, Sep 11
Delta Logo
6:25 pm - 10:40 pm
GTF
-
PDX
5h 15m
1 stop
Delta Logo
5:45 am - 12:40 pm
PDX
-
GTF
5h 55m
1 stop
$424Delta
Sat, Jun 27 - Tue, Jun 30
Delta Logo
1:10 pm - 4:21 pm
GTF
-
PDX
4h 11m
1 stop
Delta Logo
10:15 am - 5:39 pm
PDX
-
GTF
6h 24m
1 stop
$434Delta
Wed, Sep 2 - Sun, Sep 6
Alaska Airlines Logo
6:52 pm - 9:28 pm
GTF
-
PDX
3h 36m
1 stop
Alaska Airlines Logo
8:35 pm - 4:39 pm
PDX
-
GTF
19h 04m
2 stops
$438Alaska Airlines
Wed, Jun 3 - Wed, Sep 9

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Jun 27
GTF6:25 pmGreat Falls
5h 15m
1 stop
PDX10:40 pmPortland
Jun 30
PDX5:45 amPortland
5h 55m
1 stop
GTF12:40 pmGreat Falls
$424
Delta
Sep 2
GTF1:10 pmGreat Falls
4h 11m
1 stop
PDX4:21 pmPortland
Sep 6
PDX10:15 amPortland
6h 24m
1 stop
GTF5:39 pmGreat Falls
$434
Delta
Jun 6
GTF6:19 pmGreat Falls
5h 21m
1 stop
PDX10:40 pmPortland
Sep 13
PDX7:40 pmPortland
15h 43m
2 stops
GTF12:23 pmGreat Falls
$477

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
May 30
GTF6:52 pmGreat Falls
3h 36m
1 stop
PDX9:28 pmPortland
Jun 3
PDX5:00 amPortland
12h 12m
1 stop
GTF6:12 pmGreat Falls
$366
Alaska Airlines
Jun 3
GTF6:52 pmGreat Falls
3h 36m
1 stop
PDX9:28 pmPortland
Sep 15
PDX10:45 amPortland
4h 54m
1 stop
GTF4:39 pmGreat Falls
$387
Alaska Airlines
Jun 4
GTF6:52 pmGreat Falls
6h 07m
1 stop
PDX11:59 pmPortland
Sep 15
PDX11:45 amPortland
3h 54m
1 stop
GTF4:39 pmGreat Falls
$397

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 May 9, 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

Sat 5/30

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Wed 6/3

5:00 am-6:12 pm

1 stop12h 12m

$366

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 6/3

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Tue 9/15

10:45 am-4:39 pm

1 stop4h 54m

$387

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 6/4

6:52 pm-11:59 pm

1 stop6h 07m

Portland

Tue 9/15

11:45 am-4:39 pm

1 stop3h 54m

$397

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 5/30

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Wed 6/3

10:30 am-6:12 pm

2 stops6h 42m

$400

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 5/30

6:52 pm-11:59 pm

1 stop6h 07m

Portland

Wed 6/3

10:30 am-6:12 pm

2 stops6h 42m

$402
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 6/3

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Fri 9/11

11:45 am-4:39 pm

1 stop3h 54m

$407

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 6/4

6:52 pm-11:59 pm

1 stop6h 07m

Portland

Fri 9/11

9:20 am-4:39 pm

1 stop6h 19m

$417

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 6/27

6:25 pm-10:40 pm

1 stop5h 15m

Portland

Tue 6/30

5:45 am-12:40 pm

1 stop5h 55m

$424

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 9/2

1:10 pm-4:21 pm

1 stop4h 11m

Portland

Sun 9/6

10:15 am-5:39 pm

1 stop6h 24m

$434

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 6/3

6:52 pm-9:28 pm

1 stop3h 36m

Portland

Wed 9/9

8:35 pm-4:39 pm

2 stops19h 04m

$438

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 month to fly to Portland?

The cheapest month to fly to Portland from Great Falls is in March. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in March, then you should wait until May to fly from Great Falls, when ticket prices are also cheap, with an average price of $253.

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

3h 48m

Direct flights

None
The fastest flight from Great Falls to Portland takes 3h 48m
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 48m.

  • 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
12,345 reviews
Search Alaska Airlines flights
DeltaPriceFrom $273Free CancellationRating
7.9
8,457 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
The Dalles
McMinnville
Manzanita
Gresham

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

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