$217+ Cheap flights from Great Falls to Portland (GTF - PDX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PDX
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Great Falls to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Great Falls to Portland
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Cheapest flights from Great Falls to PortlandExplore the most affordable flight options available from Great Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Great Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:27 pm -
1 stop6h 20m
Wed 10/289:55 am -
1 stop6h 52m
Deal found 9/21![Delta logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:51 pm -
1 stop4h 02m
Tue 12/85:49 pm -
2 stops45h 22m
Deal found 9/22![Alaska Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop4h 10m
Sun 10/255:33 am -
1 stop6h 05m
Deal found 9/19![Delta logo]()
$501
Best flights from Great Falls to PortlandDiscover carefully curated flight deals from Great Falls to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Great Falls to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/235:30 am -
1 stop4h 46m
Wed 3/315:05 pm -
1 stop4h 48m
Deal found 9/22![Delta logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:51 pm -
1 stop4h 02m
Tue 12/85:49 pm -
2 stops45h 22m
Deal found 9/23![Alaska Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/231:10 pm -
2 stops8h 40m
Sun 3/286:00 am -
1 stop5h 27m
Deal found 9/22![Delta logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/214:55 pm -
1 stop3h 48m
Mon 3/2910:40 am -
1 stop4h 33m
Deal found 9/22![Alaska Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/211:10 pm -
2 stops8h 40m
Wed 3/315:30 am -
2 stops11h 13m
Deal found 9/22![Delta logo]()
$465
This Alaska Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:10 pm -
2 stops17h 18m
Mon 11/95:53 pm -
2 stops21h 37m
Deal found 9/24![Alaska Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/221:10 pm -
2 stops8h 40m
Thu 4/16:00 am -
1 stop5h 27m
Deal found 9/22![Delta logo]()
$480
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop4h 10m
Sun 10/255:33 am -
1 stop6h 05m
Deal found 9/19![Delta logo]()
$501
Last-minute flights from Great Falls to PortlandDiscover last-minute flight deals from Great Falls to Portland. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to Portland. Data last updated September 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:21 pm -
1 stop6h 19m
Sun 10/49:46 am -
1 stop6h 55m
Deal found 9/19![Delta logo]()
$694
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:27 pm -
1 stop6h 20m
Mon 10/195:33 am -
1 stop6h 05m
Deal found 9/21![Delta logo]()
$664
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:15 pm -
1 stop4h 43m
Fri 10/169:33 pm -
2 stops18h 02m
Deal found 9/22![Alaska Airlines logo]()
$683
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
1 stop6h 47m
Sat 10/177:06 am -
2 stops8h 29m
Deal found 9/23![Alaska Airlines logo]()
$677
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop4h 10m
Sun 10/255:33 am -
1 stop6h 05m
Deal found 9/19![Delta logo]()
$501
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:27 pm -
1 stop6h 20m
Wed 10/289:55 am -
1 stop6h 52m
Deal found 9/21![Delta logo]()
$454
One-way flights from Great Falls to PortlandSearch for one-way flight options from Great Falls to Portland. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Great Falls to Portland. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:40 am -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$217
This Priceline deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:15 pm -
1 stop3h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:18 pm -
2 stops9h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$243
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/251:18 pm -
2 stops7h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:40 am -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$277
This Orbitz deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:19 pm -
1 stop6h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Alaska Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:15 pm -
3 stops45h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:15 pm -
2 stops9h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$463
Find flight deals from Great Falls to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $412 (Alaska Airlines) |
One-way from | $217 (Delta) |
Popular in | June |
Cheapest in | May |
Average price | $454 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 24, 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
Cheapest round-trip
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Tue 10/27
1:18 pm-8:00 pm
2 stops7h 42m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$223
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Sun 10/25
6:27 pm-11:47 pm
1 stop6h 20m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$237
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Thu 10/22
1:18 pm-9:56 pm
2 stops9h 38m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$243
Quickest round-trip
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Tue 10/13
5:40 am-8:50 am
1 stop4h 10m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$277
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Fri 10/2
5:19 pm-10:58 pm
1 stop6h 39m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$347
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Tue 3/23
5:30 am-9:16 am
1 stop4h 46m
Portland
Wed 3/31
5:05 pm-10:53 pm
1 stop4h 48m
$434
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Tue 3/23
1:10 pm-8:50 pm
2 stops8h 40m
Portland
Sun 3/28
6:00 am-12:27 pm
1 stop5h 27m
$460
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Fri 10/2
1:15 pm-10:02 pm
2 stops9h 47m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$463
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Sat 10/3
5:40 am-10:40 am
2 stops6h 00m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$463
Great FallsPortland
GTF Great Falls - PDX Portland
GTFPDX
Great Falls
Sun 3/21
1:10 pm-8:50 pm
2 stops8h 40m
Portland
Wed 3/31
5:30 am-5:43 pm
2 stops11h 13m
$465
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Great Falls to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Portland in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Great Falls-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Portland flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Great Falls to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Great Falls with our price prediction graph.
GTF-PDX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated September 24, 2026.
Read reviews from past customers who have flown Alaska Airlines and Delta from Great Falls to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Great Falls to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Cannon Beach
Vancouver
Kelso
Troutdale
Clackamas
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
Browse thousands of different options on Cheapflights for your next trip
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Great Falls and Portland flights
Browse other Great Falls and Portland flight options. Last updated on September 24, 2026.
Other flights from Great Falls
Browse through other flights departing from Great Falls. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Top 2 airlines flying from Great Falls to Portland
Discover the top 2 airlines that operate flights from Great Falls to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$222 | Average$460 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$284 | Average$454 | FlexibilityNo cancel fee | On-time75% |