What is the cheapest airline that flies from Great Falls to Portland?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Great Falls to Portland

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?

The number of operators available for flights from Great Falls Airport to Portland Airport is 2 as of December 2025.

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.

$242 Cheap Flights from Great Falls to Portland in 2025/26

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Find the cheapest flights from Great Falls to Portland

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Cheap round-trip flights

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4:57 pm - 11:44 pm

GTF

PDX

7h 47m1 stop

8:30 am - 4:17 pm

PDX

GTF

6h 47m1 stop

$244Alaska Airlines

Fri, Mar 6 - Tue, Mar 10

1:12 pm - 8:59 pm

GTF

PDX

8h 47m2 stops

1:30 pm - 10:30 pm

PDX

GTF

8h 00m2 stops

$255Delta

Fri, Jan 30 - Wed, Feb 4

1:12 pm - 8:59 pm

GTF

PDX

8h 47m2 stops

7:10 am - 5:30 pm

PDX

GTF

9h 20m2 stops

$265Delta

Fri, Jan 30 - Mon, Feb 2

6:10 pm - 11:55 pm

GTF

PDX

6h 45m1 stop

10:00 am - 5:30 pm

PDX

GTF

6h 30m1 stop

$284Delta

Fri, Jan 30 - Wed, Feb 4

6:10 pm - 11:55 pm

GTF

PDX

6h 45m1 stop

7:10 am - 5:30 pm

PDX

GTF

9h 20m2 stops

$290Delta

Fri, Jan 30 - Wed, Feb 4

5:06 pm - 10:38 pm

GTF

PDX

6h 32m1 stop

9:00 am - 4:26 pm

PDX

GTF

6h 26m1 stop

$294Alaska Airlines

Mon, Apr 6 - Fri, Apr 10

1:12 pm - 8:59 pm

GTF

PDX

8h 47m2 stops

5:08 pm - 10:30 pm

PDX

GTF

4h 22m1 stop

$300Delta

Fri, Jan 30 - Mon, Feb 2

4:57 pm - 9:23 am

GTF

PDX

17h 26m2 stops

8:30 am - 4:17 pm

PDX

GTF

6h 47m1 stop

$302Alaska Airlines

Fri, Mar 6 - Tue, Mar 10

6:15 pm - 10:53 pm

GTF

PDX

5h 38m1 stop

5:51 pm - 5:35 pm

PDX

GTF

22h 44m2 stops

$337Alaska Airlines

Wed, Apr 29 - Mon, May 4

5:06 pm - 7:42 pm

GTF

PDX

27h 36m2 stops

10:10 am - 4:26 pm

PDX

GTF

5h 16m1 stop

$339Alaska Airlines

Mon, Apr 6 - Fri, Apr 10

Alaska Airlines flights from Great Falls to Portland

Our best Alaska Airlines deals on Great Falls to Portland flight tickets

Alaska Airlines

Mar 6

GTF4:57 pmGreat Falls

7h 47m

1 stop

PDX11:44 pmPortland

Mar 10

PDX8:30 amPortland

6h 47m

1 stop

GTF4:17 pmGreat Falls

$244

Find similar

Alaska Airlines

Jan 30

GTF5:59 pmGreat Falls

19h 39m

1 stop

PDX12:38 pmPortland

Feb 2

PDX9:30 pmPortland

18h 49m

1 stop

GTF5:19 pmGreat Falls

$290

Find similar

Alaska Airlines

Apr 6

GTF5:06 pmGreat Falls

6h 32m

1 stop

PDX10:38 pmPortland

Apr 10

PDX9:00 amPortland

6h 26m

1 stop

GTF4:26 pmGreat Falls

$294

Find similar

Delta flights from Great Falls to Portland

Our best Delta deals on Great Falls to Portland flight tickets

Delta

Jan 30

GTF1:12 pmGreat Falls

8h 47m

2 stops

PDX8:59 pmPortland

Feb 4

PDX1:30 pmPortland

8h 00m

2 stops

GTF10:30 pmGreat Falls

$255

Find similar

Delta

Jan 30

GTF1:12 pmGreat Falls

8h 47m

2 stops

PDX8:59 pmPortland

Feb 2

PDX7:10 amPortland

9h 20m

2 stops

GTF5:30 pmGreat Falls

$265

Find similar

Delta

Jan 30

GTF6:10 pmGreat Falls

6h 45m

1 stop

PDX11:55 pmPortland

Feb 4

PDX10:00 amPortland

6h 30m

1 stop

GTF5:30 pmGreat Falls

$284

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 3/6

4:57 pm-11:44 pm

1 stop7h 47m

Portland

Tue 3/10

8:30 am-4:17 pm

1 stop6h 47m

$244

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 1/30

1:12 pm-8:59 pm

2 stops8h 47m

Portland

Wed 2/4

1:30 pm-10:30 pm

2 stops8h 00m

$255

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 1/30

1:12 pm-8:59 pm

2 stops8h 47m

Portland

Mon 2/2

7:10 am-5:30 pm

2 stops9h 20m

$265

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 1/30

6:10 pm-11:55 pm

1 stop6h 45m

Portland

Wed 2/4

10:00 am-5:30 pm

1 stop6h 30m

$284

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 1/30

6:10 pm-11:55 pm

1 stop6h 45m

Portland

Wed 2/4

7:10 am-5:30 pm

2 stops9h 20m

$290

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 4/6

5:06 pm-10:38 pm

1 stop6h 32m

Portland

Fri 4/10

9:00 am-4:26 pm

1 stop6h 26m

$294

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 1/30

1:12 pm-8:59 pm

2 stops8h 47m

Portland

Mon 2/2

5:08 pm-10:30 pm

1 stop4h 22m

$300

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Fri 3/6

4:57 pm-9:23 am

2 stops17h 26m

Portland

Tue 3/10

8:30 am-4:17 pm

1 stop6h 47m

$302

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Wed 4/29

6:15 pm-10:53 pm

1 stop5h 38m

Portland

Mon 5/4

5:51 pm-5:35 pm

2 stops22h 44m

$337

Great FallsPortland

GTF - PDX

GTFPDX

Great Falls

Mon 4/6

5:06 pm-7:42 pm

2 stops27h 36m

Portland

Fri 4/10

10:10 am-4:26 pm

1 stop5h 16m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Thursday when prices can be found for as low as $307. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $541.

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

You could potentially save up to 26% 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 33m
Direct flights	None

The fastest flight from Great Falls to Portland takes 4h 33m

There are no direct flights from Great Falls to Portland. There are no popular flight routes from Great Falls to Portland.

Search flight deals

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 33m.
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?
The number of operators available for flights from Great Falls Airport to Portland Airport is 2 as of December 2025.
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?
Based on momondo bookings for flights between Great Falls and Portland, the leading airline is Delta, making up 69% of the total bookings. Other popular airlines include Alaska Airlines with 31%.

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
Delta	PriceFrom $264	Free Cancellation	Rating 7.9 8,017 reviews		Search Delta flights
Alaska Airlines	PriceFrom $381	Free Cancellation	Rating 8.0 11,552 reviews		Search Alaska Airlines flights

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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.