PWM - GTF

$367 Find Cheap Flights from Portland to Great Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Great Falls departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Great Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Great Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$492
United Airlines
Thu 5/21Tue 5/26
PWM - GTF • 1 stop
Cheapest one-way
$367
Multiple Airlines
Sat 7/11
PWM - GTF • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Portland and Great Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $445 (round-trip)
Chicago (ORD)
Shortest trip • 7h 19m (one-way)
Insights
Insights
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We hope you love your trip to Great Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Great Falls (PWM-GTF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Great Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Great Falls

Thu, May 21 - Tue, May 26
United Airlines Logo
3:31 pm - 9:34 pm
PWM
-
GTF
8h 03m
1 stop
United Airlines Logo
6:15 am - 3:49 pm
GTF
-
PWM
7h 34m
1 stop
$492United Airlines
Thu, May 21 - Tue, May 26
United Airlines Logo
3:31 pm - 9:34 pm
PWM
-
GTF
8h 03m
1 stop
United Airlines Logo
2:37 pm - 9:51 pm
GTF
-
PWM
29h 14m
2 stops
$637United Airlines
Thu, May 21 - Tue, May 26
United Airlines Logo
3:31 pm - 9:34 pm
PWM
-
GTF
8h 03m
1 stop
United Airlines Logo
6:15 am - 3:49 pm
GTF
-
PWM
7h 34m
1 stop
$639United Airlines
Thu, May 21 - Tue, May 26
United Airlines Logo
3:31 pm - 9:34 pm
PWM
-
GTF
8h 03m
1 stop
United Airlines Logo
6:15 am - 1:25 pm
GTF
-
PWM
29h 10m
3 stops
$651United Airlines
Thu, May 21 - Tue, May 26
United Airlines Logo
3:31 pm - 9:34 pm
PWM
-
GTF
8h 03m
1 stop
United Airlines Logo
2:37 pm - 10:04 am
GTF
-
PWM
17h 27m
2 stops
$658United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
11:17 am - 10:30 pm
PWM
-
GTF
13h 13m
2 stops
United Airlines Logo
6:15 am - 3:49 pm
GTF
-
PWM
7h 34m
1 stop
$698United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
11:17 am - 10:30 pm
PWM
-
GTF
13h 13m
2 stops
United Airlines Logo
2:25 pm - 11:57 pm
GTF
-
PWM
31h 32m
2 stops
$721United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
7:22 pm - 10:30 pm
PWM
-
GTF
29h 08m
2 stops
United Airlines Logo
6:15 am - 3:49 pm
GTF
-
PWM
7h 34m
1 stop
$753United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
7:22 pm - 10:30 pm
PWM
-
GTF
29h 08m
2 stops
United Airlines Logo
6:15 am - 6:13 pm
GTF
-
PWM
9h 58m
2 stops
$758United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
7:22 pm - 10:30 pm
PWM
-
GTF
29h 08m
2 stops
United Airlines Logo
2:25 pm - 11:57 pm
GTF
-
PWM
31h 32m
2 stops
$776United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Great Falls flights

Get data-powered insights and trends into flights from Portland to Great Falls to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Portland to Great Falls?

Percentage of 1-stop round-trip flights from Portland to Great Falls chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Denver (DEN) is the top choice – 57% of KAYAK users who clicked on 1-stop flights from Portland to Great Falls picked an itinerary connecting there.

What is the cheapest layover airport when flying from Portland to Great Falls?

Average round-trip price for 1-stop flights from Portland to Great Falls clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Chicago (ORD) offer the most affordable fares, with an average round-trip price of $445.

Which layover airport offers the shortest total travel time from Portland to Great Falls?

Shortest average total travel time for 1-stop one-way flights from Portland to Great Falls via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Chicago (ORD) for the shortest journey. The average one-way travel time for flights connecting there is 7h 19m.

Which layover airport has the quickest connection when flying from Portland to Great Falls?

Average layover duration at different layover airports for 1-stop one-way flights from Portland to Great Falls, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Chicago (ORD) often has the shortest layovers from Portland to Great Falls, with an average of 1h 00m.

Find deals

Good to know

Cheapest flight$367
Flight from Portland to Great Falls

When to book flights from Portland to Great Falls

Are your dates flexible? Find out the best times to travel from Portland to Great Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Great Falls

  • What is the cheapest flight from Portland to Great Falls?

    In the last 3 days, the lowest price for a flight from Portland to Great Falls was $367 for a one-way ticket and $492 for a round-trip.

  • Do I need a passport to fly between Portland and Great Falls?

    No

  • Which aircraft models fly most regularly from Portland to Great Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Great Falls?

    Star Alliance is the only airline alliance operating flights between Portland and Great Falls.

  • How does KAYAK find such low prices on flights from Portland to Great Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Great Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Great Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Great Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to Portland with another airline. Booking your flights between Portland and GTF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Great Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Great Falls

 
See real verified KAYAK customer reviews for airlines flying from Portland to Great Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Great Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9680 reviews
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

8.0 ExcellentJason, May 2026
BDL - HNL
Read more United Airlines reviews

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Everything you need to know for your flight from Portland to Great Falls

Information on your arrival and departure airports

Portland (PWM)
Great Falls (GTF)