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Cheap flights from Great Falls to Portland from $192

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 10/4. 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.
Alaska Airlines Logo
5:18 pm - 11:43 am
GTF
-
PDX
19h 25m
1 stop
Alaska Airlines Logo
11:48 am - 4:38 pm
PDX
-
GTF
3h 50m
1 stop
$383Alaska Airlines
Fri, Aug 21 - Mon, Aug 24
Alaska Airlines Logo
5:18 pm - 11:43 am
GTF
-
PDX
19h 25m
1 stop
Alaska Airlines Logo
6:53 pm - 4:38 pm
PDX
-
GTF
20h 45m
2 stops
$421Alaska Airlines
Fri, Aug 21 - Mon, Aug 24
Alaska Airlines Logo
5:09 pm - 10:25 pm
GTF
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
5:00 am - 4:29 pm
PDX
-
GTF
10h 29m
1 stop
$444Alaska Airlines
Fri, Jul 10 - Mon, Jul 13
Multiple Airlines Logo
10:24 am - 4:54 pm
GTF
-
PDX
7h 30m
1 stop
Multiple Airlines Logo
6:49 pm - 9:29 am
PDX
-
GTF
13h 40m
1 stop
$462Multiple Airlines
Fri, Jul 10 - Sun, Jul 12
Multiple Airlines Logo
10:24 am - 4:54 pm
GTF
-
PDX
7h 30m
1 stop
Multiple Airlines Logo
6:49 pm - 9:29 am
PDX
-
GTF
13h 40m
1 stop
$471Multiple Airlines
Fri, Jul 10 - Sun, Jul 12
Delta Logo
6:25 pm - 11:44 pm
GTF
-
PDX
6h 19m
1 stop
Delta Logo
5:14 pm - 10:37 pm
PDX
-
GTF
4h 23m
1 stop
$478Delta
Fri, Jul 10 - Tue, Jul 14
Delta Logo
5:40 am - 8:39 am
GTF
-
PDX
3h 59m
1 stop
Delta Logo
9:45 am - 5:44 pm
PDX
-
GTF
6h 59m
1 stop
$484Delta
Sun, Jun 28 - Mon, Jul 6
Delta Logo
1:20 pm - 10:02 pm
GTF
-
PDX
9h 42m
2 stops
Delta Logo
9:45 am - 5:44 pm
PDX
-
GTF
6h 59m
1 stop
$490Delta
Mon, Jun 29 - Mon, Jul 6
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
$498Alaska Airlines
Thu, Jul 9 - Tue, Jul 14
Alaska Airlines Logo
5:09 pm - 6:14 am
GTF
-
PDX
14h 05m
2 stops
Alaska Airlines Logo
5:00 am - 4:29 pm
PDX
-
GTF
10h 29m
1 stop
$500Alaska Airlines
Fri, Jul 10 - Mon, Jul 13

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
Aug 21
GTF5:18 pmGreat Falls
19h 25m
1 stop
PDX11:43 amPortland
Aug 24
PDX11:48 amPortland
3h 50m
1 stop
GTF4:38 pmGreat Falls
$383
Alaska Airlines
Aug 21
GTF5:18 pmGreat Falls
19h 25m
1 stop
PDX11:43 amPortland
Aug 24
PDX6:53 pmPortland
20h 45m
2 stops
GTF4:38 pmGreat Falls
$421
Alaska Airlines
Jul 10
GTF5:09 pmGreat Falls
6h 16m
1 stop
PDX10:25 pmPortland
Jul 13
PDX5:00 amPortland
10h 29m
1 stop
GTF4:29 pmGreat Falls
$444

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Jul 10
GTF6:25 pmGreat Falls
6h 19m
1 stop
PDX11:44 pmPortland
Jul 14
PDX5:14 pmPortland
4h 23m
1 stop
GTF10:37 pmGreat Falls
$478
Delta
Jun 28
GTF5:40 amGreat Falls
3h 59m
1 stop
PDX8:39 amPortland
Jul 6
PDX9:45 amPortland
6h 59m
1 stop
GTF5:44 pmGreat Falls
$484
Delta
Jun 29
GTF1:20 pmGreat Falls
9h 42m
2 stops
PDX10:02 pmPortland
Jul 6
PDX9:45 amPortland
6h 59m
1 stop
GTF5:44 pmGreat Falls
$490

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 June 4, 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

Fri 8/21

5:18 pm-11:43 am

1 stop19h 25m

Portland

Mon 8/24

11:48 am-4:38 pm

1 stop3h 50m

$383

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 8/21

5:18 pm-11:43 am

1 stop19h 25m

Portland

Mon 8/24

6:53 pm-4:38 pm

2 stops20h 45m

$421

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 7/10

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Mon 7/13

5:00 am-4:29 pm

1 stop10h 29m

$444

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 7/10

10:24 am-4:54 pm

1 stop7h 30m

Portland

Sun 7/12

6:49 pm-9:29 am

1 stop13h 40m

$462

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 7/10

10:24 am-4:54 pm

1 stop7h 30m

Portland

Sun 7/12

6:49 pm-9:29 am

1 stop13h 40m

$471
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 7/10

6:25 pm-11:44 pm

1 stop6h 19m

Portland

Tue 7/14

5:14 pm-10:37 pm

1 stop4h 23m

$478

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sun 6/28

5:40 am-8:39 am

1 stop3h 59m

Portland

Mon 7/6

9:45 am-5:44 pm

1 stop6h 59m

$484

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 6/29

1:20 pm-10:02 pm

2 stops9h 42m

Portland

Mon 7/6

9:45 am-5:44 pm

1 stop6h 59m

$490

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 7/9

5:09 pm-10:25 pm

1 stop6h 16m

Portland

Tue 7/14

9:19 am-4:29 pm

1 stop6h 10m

$498

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 7/10

5:09 pm-6:14 am

2 stops14h 05m

Portland

Mon 7/13

5:00 am-4:29 pm

1 stop10h 29m

$500

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 32m

Direct flights

None
The fastest flight from Great Falls to Portland takes 3h 32m
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 32m.

  • 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
12,464 reviews
Search Alaska Airlines flights
DeltaPriceFrom $273Free CancellationRating
7.8
8,398 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
Hood River
Longview
Troutdale
Newberg
Clackamas
The Dalles
Gresham
McMinnville

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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