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Cheap flights from Great Falls to Portland from $205

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 8/20. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Great Falls to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:19 am - 4:54 pm
GTF
-
PDX
7h 35m
1 stop
Multiple Airlines Logo
11:48 am - 4:38 pm
PDX
-
GTF
3h 50m
1 stop
$310Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
Alaska Airlines Logo
5:15 pm - 1:27 pm
GTF
-
PDX
21h 12m
1 stop
Alaska Airlines Logo
5:45 pm - 4:35 pm
PDX
-
GTF
21h 50m
1 stop
$372Alaska Airlines
Tue, Oct 6 - Fri, Oct 9
Alaska Airlines Logo
5:15 pm - 1:27 pm
GTF
-
PDX
21h 12m
1 stop
Alaska Airlines Logo
8:05 am - 4:17 pm
PDX
-
GTF
7h 12m
1 stop
$382Alaska Airlines
Tue, Oct 27 - Sun, Nov 1
Alaska Airlines Logo
5:15 pm - 1:32 pm
GTF
-
PDX
21h 17m
2 stops
Alaska Airlines Logo
5:45 pm - 4:35 pm
PDX
-
GTF
21h 50m
1 stop
$389Alaska Airlines
Tue, Oct 6 - Fri, Oct 9
Delta Logo
1:08 pm - 10:38 pm
GTF
-
PDX
10h 30m
2 stops
Delta Logo
7:05 am - 5:38 pm
PDX
-
GTF
9h 33m
2 stops
$393Delta
Sat, Aug 22 - Tue, Aug 25
Alaska Airlines Logo
5:18 pm - 4:49 pm
GTF
-
PDX
24h 31m
1 stop
Alaska Airlines Logo
11:48 am - 4:45 pm
PDX
-
GTF
3h 57m
1 stop
$402Alaska Airlines
Thu, Sep 3 - Sun, Sep 6
Alaska Airlines Logo
5:09 pm - 9:46 am
GTF
-
PDX
17h 37m
2 stops
Alaska Airlines Logo
9:32 pm - 4:38 pm
PDX
-
GTF
18h 06m
1 stop
$412Alaska Airlines
Mon, Aug 17 - Fri, Aug 21
Delta Logo
6:18 pm - 10:38 pm
GTF
-
PDX
5h 20m
1 stop
Delta Logo
5:08 pm - 10:38 pm
PDX
-
GTF
4h 30m
1 stop
$424Delta
Sat, Aug 22 - Tue, Aug 25
Alaska Airlines Logo
5:15 pm - 9:40 am
GTF
-
PDX
17h 25m
2 stops
Alaska Airlines Logo
7:05 am - 4:17 pm
PDX
-
GTF
8h 12m
1 stop
$425Alaska Airlines
Tue, Oct 27 - Sun, Nov 1
Delta Logo
6:18 pm - 10:38 pm
GTF
-
PDX
5h 20m
1 stop
Delta Logo
7:05 am - 5:38 pm
PDX
-
GTF
9h 33m
2 stops
$430Delta
Sat, Aug 22 - Tue, Aug 25

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Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets
Alaska Airlines
Oct 6
GTF5:15 pmGreat Falls
21h 12m
1 stop
PDX1:27 pmPortland
Oct 9
PDX5:45 pmPortland
21h 50m
1 stop
GTF4:35 pmGreat Falls
$372
Alaska Airlines
Oct 27
GTF5:15 pmGreat Falls
21h 12m
1 stop
PDX1:27 pmPortland
Nov 1
PDX8:05 amPortland
7h 12m
1 stop
GTF4:17 pmGreat Falls
$382
Alaska Airlines
Oct 6
GTF5:15 pmGreat Falls
21h 17m
2 stops
PDX1:32 pmPortland
Oct 9
PDX5:45 pmPortland
21h 50m
1 stop
GTF4:35 pmGreat Falls
$389

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets
Delta
Aug 22
GTF1:08 pmGreat Falls
10h 30m
2 stops
PDX10:38 pmPortland
Aug 26
PDX7:05 amPortland
9h 33m
2 stops
GTF5:38 pmGreat Falls
$393
Delta
Aug 22
GTF6:18 pmGreat Falls
5h 20m
1 stop
PDX10:38 pmPortland
Aug 25
PDX5:08 pmPortland
4h 30m
1 stop
GTF10:38 pmGreat Falls
$424
Delta
Aug 22
GTF6:18 pmGreat Falls
5h 20m
1 stop
PDX10:38 pmPortland
Aug 25
PDX7:05 amPortland
9h 33m
2 stops
GTF5:38 pmGreat Falls
$430

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 July 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

Mon 8/17

10:19 am-4:54 pm

1 stop7h 35m

Portland

Fri 8/21

11:48 am-4:38 pm

1 stop3h 50m

$310

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 10/6

5:15 pm-1:27 pm

1 stop21h 12m

Portland

Fri 10/9

5:45 pm-4:35 pm

1 stop21h 50m

$372

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 10/27

5:15 pm-1:27 pm

1 stop21h 12m

Portland

Sun 11/1

8:05 am-4:17 pm

1 stop7h 12m

$382

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 10/6

5:15 pm-1:32 pm

2 stops21h 17m

Portland

Fri 10/9

5:45 pm-4:35 pm

1 stop21h 50m

$389

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 8/22

1:08 pm-10:38 pm

2 stops10h 30m

Portland

Tue 8/25

7:05 am-5:38 pm

2 stops9h 33m

$393

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Thu 9/3

5:18 pm-4:49 pm

1 stop24h 31m

Portland

Sun 9/6

11:48 am-4:45 pm

1 stop3h 57m

$402

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 8/17

5:09 pm-9:46 am

2 stops17h 37m

Portland

Fri 8/21

9:32 pm-4:38 pm

1 stop18h 06m

$412
Quickest round-trip

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 8/22

6:18 pm-10:38 pm

1 stop5h 20m

Portland

Tue 8/25

5:08 pm-10:38 pm

1 stop4h 30m

$424

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Tue 10/27

5:15 pm-9:40 am

2 stops17h 25m

Portland

Sun 11/1

7:05 am-4:17 pm

1 stop8h 12m

$425

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Sat 8/22

6:18 pm-10:38 pm

1 stop5h 20m

Portland

Tue 8/25

7:05 am-5:38 pm

2 stops9h 33m

$430

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 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 $284.

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

You could potentially save up to 44% 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 $222Free CancellationRating
7.8
8,467 reviews
Search Delta flights
Alaska AirlinesPriceFrom $222Free CancellationRating
7.9
12,655 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
Vancouver
Cannon Beach
Salem
Astoria
Long Beach
Beaverton
Rockaway Beach
Hillsboro
Depoe Bay
Tigard
Longview
Hood River
Clackamas
Newberg
Troutdale
Gresham
McMinnville
Kelso

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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