PDX - GTF

$284 Find Cheap Flights from Portland to Great Falls

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Great Falls departing on 5/12. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$284
Overall average: $411
Alaska Airlines
Tue 5/12Fri 5/15
PDX - GTF • 1 stop
Cheapest one-way
$378
Alaska Airlines
Wed 3/25
PDX - GTF • 2 stops
Top airlines
Cheapest • from $284 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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
Cheapest • Avg $459 (round-trip)
Shortest trip • 3h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 47% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Great Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Great Falls (PDX-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

Tue, May 12 - Fri, May 15
Alaska Airlines Logo
8:30 pm - 6:12 pm
PDX
-
GTF
20h 42m
1 stop
Alaska Airlines Logo
6:52 pm - 9:47 am
GTF
-
PDX
15h 55m
1 stop
$284Alaska Airlines
Sat, Apr 25 - Tue, Apr 28
Delta Logo
9:55 am - 5:40 pm
PDX
-
GTF
6h 45m
1 stop
Delta Logo
6:20 pm - 11:53 pm
GTF
-
PDX
6h 33m
1 stop
$286Delta
Fri, Apr 24 - Mon, Apr 27
Delta Logo
5:05 pm - 10:29 pm
PDX
-
GTF
4h 24m
1 stop
Delta Logo
6:20 pm - 11:53 pm
GTF
-
PDX
6h 33m
1 stop
$290Delta
Sat, Apr 25 - Tue, Apr 28
Delta Logo
5:45 am - 12:27 pm
PDX
-
GTF
5h 42m
1 stop
Delta Logo
6:20 pm - 9:58 am
GTF
-
PDX
16h 38m
2 stops
$291Delta
Sat, Apr 25 - Tue, Apr 28
Delta Logo
5:30 am - 5:40 pm
PDX
-
GTF
11h 10m
2 stops
Delta Logo
1:09 pm - 9:32 pm
GTF
-
PDX
9h 23m
2 stops
$295Delta
Thu, Apr 9 - Mon, Apr 13
Delta Logo
5:45 am - 12:24 pm
PDX
-
GTF
5h 39m
1 stop
Delta Logo
6:20 pm - 11:53 pm
GTF
-
PDX
6h 33m
1 stop
$309Delta
Fri, Apr 24 - Mon, Apr 27
Alaska Airlines Logo
11:59 am - 5:35 pm
PDX
-
GTF
4h 36m
1 stop
Alaska Airlines Logo
6:15 pm - 1:27 pm
GTF
-
PDX
20h 12m
2 stops
$324Alaska Airlines
Sat, Apr 18 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 4:26 pm
PDX
-
GTF
8h 26m
2 stops
Alaska Airlines Logo
5:06 pm - 9:38 pm
GTF
-
PDX
5h 32m
1 stop
$327Alaska Airlines
Sun, Apr 26 - Wed, Apr 29
Delta Logo
5:30 am - 5:40 pm
PDX
-
GTF
11h 10m
2 stops
Delta Logo
6:20 pm - 11:53 pm
GTF
-
PDX
6h 33m
1 stop
$331Delta
Thu, Apr 9 - Sun, Apr 12
Alaska Airlines Logo
2:42 pm - 4:26 pm
PDX
-
GTF
24h 44m
1 stop
Alaska Airlines Logo
5:06 pm - 9:38 pm
GTF
-
PDX
5h 32m
1 stop
$332Alaska 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 cheapest month to fly from Portland to Great Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Great Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Great Falls is February, where tickets cost $231 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $944 and $650 respectively.

Good to know

Low seasonJanuary
Cheapest flight$284
Best time to beat the crowds but there is an average 117% increase in price.
Most popular time to fly with an average 2% increase in price.
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 $378 for a one-way ticket and $284 for a round-trip.

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

    A passport is not required to fly from Portland to Great Falls.

  • 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?

    oneworld, and SkyTeam are the airline alliances operating flights between Portland and Great Falls, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Great Falls, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Great Falls are Delta and Alaska Airlines. With an average price for the route of $374 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $543 and an overall rating of 7.9.

  • 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 airlines 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.
7.9
Alaska AirlinesOverall score based on 12072 reviews
8.1Boarding
7.0Food
8.5Crew
7.8Comfort
7.0Entertainment
Airline reviews

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

2.0 MediocreAnonymous, Mar 2026
PDX - SEA
Read more Alaska Airlines reviews

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

Liked the attention and speed when getting wheelchair..........Was assured by phone that my needs would be taken care of and they were with my name.

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

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

Information on your arrival and departure airports