PDX - GTF

$233 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 6/30. 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

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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Flights 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, Jul 8 - Fri, Jul 11
Delta Logo
9:51 am - 5:39 pmPDX-GTF
6h 48m1 stop
Delta Logo
11:43 am - 6:00 pmGTF-PDX
7h 17m1 stop
$394Delta
Find Deal
Mon, Jul 7 - Fri, Jul 11
Delta Logo
7:15 am - 11:03 amPDX-GTF
26h 48m2 stops
Delta Logo
11:43 am - 6:00 pmGTF-PDX
7h 17m1 stop
$424Delta
Find Deal
Sun, Jul 13 - Sun, Jul 20
 Logo
10:23 am - 9:24 amPDX-GTF
22h 01m1 stop
 Logo
8:02 pm - 5:41 pmGTF-PDX
22h 39m2 stops
Fri, Aug 1 - Mon, Aug 4
Alaska Airlines Logo
5:15 am - 4:13 pmPDX-GTF
9h 58m1 stop
Alaska Airlines Logo
4:55 pm - 8:08 pmGTF-PDX
4h 13m1 stop
$451Alaska Airlines
Find Deal
Sun, Jun 29 - Thu, Jul 3
 Logo
12:12 pm - 9:27 amPDX-GTF
20h 15m1 stop
 Logo
8:02 pm - 5:41 pmGTF-PDX
22h 39m2 stops
Sun, Jul 13 - Sun, Jul 20
Allegiant Air Logo
10:34 am - 9:24 amPDX-GTF
21h 50m2 stops
Allegiant Air Logo
8:02 pm - 5:41 pmGTF-PDX
22h 39m2 stops
$544Allegiant Air
Find Deal
Fri, Jul 18 - Mon, Jul 21
United Airlines Logo
5:00 am - 9:13 pmPDX-GTF
15h 13m1 stop
United Airlines Logo
6:25 am - 10:16 pmGTF-PDX
16h 51m1 stop
$545United Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
Alaska Airlines Logo
2:30 pm - 4:13 pmPDX-GTF
24h 43m1 stop
Alaska Airlines Logo
4:55 pm - 9:13 pmGTF-PDX
5h 18m1 stop
$586Alaska Airlines
Find Deal
Sun, Jun 29 - Thu, Jul 3
Allegiant Air Logo
10:35 am - 9:27 amPDX-GTF
21h 52m2 stops
Allegiant Air Logo
8:02 pm - 5:41 pmGTF-PDX
22h 39m2 stops
$629Allegiant Air
Find Deal
Sat, Jun 28 - Tue, Jul 8
United Airlines Logo
5:00 am - 9:13 pmPDX-GTF
15h 13m1 stop
United Airlines Logo
2:35 pm - 12:32 pmGTF-PDX
22h 57m2 stops
$665United Airlines
Find Deal
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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’s the cheapest day of the week to fly from Portland to Great Falls?

The average price of all round-trip flights from Portland to Great Falls clicked on KAYAK for each day over the last 12 months.

For Portland to Great Falls, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Great Falls back to Portland, the best deals are generally found on Thursday, with Sunday being the most expensive.

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 August, where tickets cost $318 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $529 and $479 respectively.

Good to know

Low seasonJune
High seasonSeptember
Cheapest flight$233
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 6% lower on average.
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 $233 for a one-way ticket and $394 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Portland and Great Falls, with SkyTeam 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 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $428 and an overall rating of 8.0.

  • 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.

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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.1Boarding
7.8Comfort
8.5Crew
7.1Entertainment
Airline reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

10.0 Excellentmarlene, Jun 2025PDX - SMF
Read more Alaska Airlines reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Check in, they should have told me that upon arrival i needed to exit the secure area and re-check in with Eva Air. I wasn't sure what to do upon arrival at S.F.

The direct service from Logan to PDX made travel so easy, I really appreciate this route. Pilots were very communicative with passengers about conditions and expectations. Everyone on staff was pleasant and helpful. Boarding was easy and efficient.

Flight last minute delayed 2 hours for crew calling out sick

Husband was new to the wheelchair accommodations this trip. What a blessing that was. All employees were helpful and customer service was excellent

Seats are still too crowded and uncomfortable on long flights like this cross country one.

Laney was very helpful. I am computer illiterate. She helped me obtain a boarding pass and preferred seat. She was warm, friendly, helpful, and smiled. I was impressed.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

OUr pilot was very good and also a good landing in a very gusting Phoenix. Most important.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

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

Information on your arrival and departure airports

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