$222+ Cheap flights from Portland to Great Falls (PDX - GTF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GTF
Jul 25 — Aug 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Great Falls 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Portland to Great Falls
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Great FallsExplore the most affordable flight options available from Portland to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
Explore the most affordable flight options available from Portland to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Tue 9/2211:48 am
PDX
- GTF
1 stop3h 51m
Alaska Airlines
Sat 9/265:19 pm
GTF
- PDX
1 stop3h 31m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 6/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:05 am
PDX
- GTF
2 stops9h 33m
Delta
Wed 8/266:18 pm
GTF
- PDX
1 stop6h 21m
Delta
Deal found 6/24![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:05 am
PDX
- GTF
2 stops9h 33m
Delta
Sat 8/225:40 am
GTF
- PDX
1 stop3h 57m
Delta
Deal found 6/23![Delta logo]()
$400
This Delta deal was found by Cheapflights users on 6/21. 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.
Thu 8/209:45 am
PDX
- GTF
1 stop6h 53m
Delta
Sun 8/235:40 am
GTF
- PDX
1 stop3h 57m
Delta
Deal found 6/21![Delta logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:03 pm
PDX
- GTF
1 stop3h 26m
Alaska Airlines
Fri 8/145:09 pm
GTF
- PDX
2 stops28h 40m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$435
Best flights from Portland to Great FallsDiscover carefully curated flight deals from Portland to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
Discover carefully curated flight deals from Portland to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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.
Tue 9/2211:48 am
PDX
- GTF
1 stop3h 51m
Alaska Airlines
Sat 9/265:19 pm
GTF
- PDX
1 stop3h 31m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:08 pm
PDX
- GTF
1 stop4h 30m
Delta
Sat 8/226:18 pm
GTF
- PDX
1 stop5h 20m
Delta
Deal found 6/23![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 6/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:45 am
PDX
- GTF
1 stop6h 53m
Delta
Wed 8/265:40 am
GTF
- PDX
1 stop3h 57m
Delta
Deal found 6/24![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 6/22. 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.
Sat 8/85:08 pm
PDX
- GTF
1 stop4h 30m
Delta
Mon 8/106:18 pm
GTF
- PDX
1 stop6h 21m
Delta
Deal found 6/22![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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.
Mon 8/109:45 pm
PDX
- GTF
2 stops17h 44m
Alaska Airlines
Fri 8/145:09 pm
GTF
- PDX
2 stops16h 53m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:45 am
PDX
- GTF
1 stop5h 43m
Delta
Fri 8/146:18 pm
GTF
- PDX
1 stop6h 26m
Delta
Deal found 6/23![Delta logo]()
$444
Last-minute flights from Portland to Great FallsDiscover last-minute flight deals from Portland to Great Falls. Data last updated June 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Great Falls. Data last updated June 25, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:19 am
PDX
- GTF
1 stop6h 10m
Alaska Airlines
Sat 7/115:09 pm
GTF
- PDX
2 stops17h 37m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$697
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:45 am
PDX
- GTF
1 stop5h 52m
Delta
Sun 7/125:40 am
GTF
- PDX
1 stop3h 57m
Delta
Deal found 6/23![Delta logo]()
$628
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 am
PDX
- GTF
1 stop5h 52m
Delta
Sun 7/196:25 pm
GTF
- PDX
1 stop6h 19m
Delta
Deal found 6/23![Delta logo]()
$626
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:19 am
PDX
- GTF
1 stop6h 10m
Alaska Airlines
Sun 7/195:09 pm
GTF
- PDX
1 stop15h 28m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$744
This Booking.com deal was found by Cheapflights users on 6/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:19 am
PDX
- GTF
1 stop9h 10m
Alaska Airlines
Sat 7/255:09 pm
GTF
- PDX
1 stop15h 28m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$752
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:45 am
PDX
- GTF
1 stop5h 52m
Delta
Tue 7/285:40 am
GTF
- PDX
1 stop3h 57m
Delta
Deal found 6/23![Delta logo]()
$606
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Tue 7/218:19 am
PDX
- GTF
1 stop7h 10m
Alaska Airlines
Tue 7/285:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$664
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 7/315:00 am
PDX
- GTF
1 stop10h 29m
Alaska Airlines
Tue 8/45:09 pm
GTF
- PDX
1 stop3h 45m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$574
One-way flights from Portland to Great FallsSearch for one-way flight options from Portland to Great Falls. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
Search for one-way flight options from Portland to Great Falls. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
This Delta deal was found by Cheapflights users on 6/22. 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.
Sat 8/15:45 am
PDX
- GTF
1 stop5h 52m
Delta
Deal found 6/22![Delta logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sat 8/15:36 pm
PDX
- GTF
2 stops38h 53m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 6/22. 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.
Fri 7/315:45 am
PDX
- GTF
1 stop5h 52m
Delta
Deal found 6/22![Delta logo]()
$293
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:20 am
PDX
- GTF
1 stop6h 19m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 6/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:14 pm
PDX
- GTF
1 stop4h 23m
Delta
Deal found 6/24![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:45 am
PDX
- GTF
1 stop5h 52m
Delta
Deal found 6/23![Delta logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:21 pm
PDX
- GTF
2 stops25h 59m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Fri 7/245:30 pm
PDX
- GTF
1 stop21h 59m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$418
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:21 pm
PDX
- GTF
3 stops39h 13m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:45 am
PDX
- GTF
1 stop5h 55m
Delta
Deal found 6/23![Delta logo]()
$440
Find flight deals from Portland to Great Falls
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Great Falls (GTF). 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 June 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $344 (Alaska Airlines) |
One-way from | $222 (Delta) |
Popular in | January |
Cheapest in | April |
Average price | $799 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Great Falls 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 2,558,603 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Portland to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Tue 9/22
11:48 am-4:39 pm
1 stop3h 51m
Great Falls
Sat 9/26
5:19 pm-7:50 pm
1 stop3h 31m
$346
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Wed 8/19
5:08 pm-10:38 pm
1 stop4h 30m
Great Falls
Sat 8/22
6:18 pm-10:38 pm
1 stop5h 20m
$394
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Wed 8/19
9:45 am-5:38 pm
1 stop6h 53m
Great Falls
Wed 8/26
5:40 am-8:37 am
1 stop3h 57m
$395
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Sat 8/8
5:08 pm-10:38 pm
1 stop4h 30m
Great Falls
Mon 8/10
6:18 pm-11:39 pm
1 stop6h 21m
$444
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Mon 8/10
5:45 am-12:28 pm
1 stop5h 43m
Great Falls
Fri 8/14
6:18 pm-11:44 pm
1 stop6h 26m
$444
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Mon 8/10
9:45 pm-4:29 pm
2 stops17h 44m
Great Falls
Fri 8/14
5:09 pm-9:02 am
2 stops16h 53m
$497
Cheapest one-way
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Sat 8/1
5:45 am-12:37 pm
1 stop5h 52m
$222
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Fri 7/31
5:45 am-12:37 pm
1 stop5h 52m
$293
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Thu 9/17
9:20 am-4:39 pm
1 stop6h 19m
$297
Quickest one-way
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Wed 7/15
5:14 pm-10:37 pm
1 stop4h 23m
$302
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Portland to Great Falls
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 Portland to Great Falls in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Great Falls 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 Portland-Great Falls 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 Portland to Great Falls
Have a flexible travel schedule? Discover the best time to fly to Great Falls from Portland with our price prediction graph.
PDX-GTF
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.
Cheapflights Insights
Everything you need to know about your flight from Portland to Great Falls
What is the cheapest month to book a flight from Portland to Great Falls?
Currently, April is the cheapest month in which you can book a flight from Portland to Great Falls (average of $273). Flying from Portland to Great Falls in January is currently the most expensive (average of $944). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Portland to Great Falls?
Reviews of airlines servicing Great Falls
Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated June 25, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from Portland to Great Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Portland to Great Falls. 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 Great Falls?
Book flights to Great Falls if you plan to visit one of these locationsShelby
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Great Falls flight routes
Other flight options
Other flights from Portland
Popular flights
Alternative routes for Portland to Great Falls
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Great Falls by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Great Falls by cabin class
Find flights from Portland to Great Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Great Falls
Explore flights to Great Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 25, 2026.
Portland and Great Falls flights
Browse other Portland and Great Falls flight options. Last updated on June 25, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on June 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Portland to Great Falls
Discover the top 2 airlines that operate flights from Portland to Great Falls. 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 2,558,603 searches. Data last updated June 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$186 | Average$401 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$578 | FlexibilityNo cancel fee | On-time75% |