$241+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GTF
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Great Falls with Cheapflights
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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 Portland to Great Falls
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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 8, 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 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 9/267:09 am
PDX
- GTF
1 stop8h 30m
Alaska Airlines
Wed 9/305:19 pm
GTF
- PDX
1 stop3h 31m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 9/257:22 pm
PDX
- GTF
1 stop20h 17m
Alaska Airlines
Sun 9/275:19 pm
GTF
- PDX
1 stop3h 31m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 6/7. 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 9/259:46 am
PDX
- GTF
1 stop6h 55m
Delta
Sun 9/271:15 pm
GTF
- PDX
2 stops9h 47m
Delta
Deal found 6/7![Delta logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Sun 7/196:49 pm
PDX
- GTF
1 stop13h 40m
Multiple Airlines
Sun 7/269:10 pm
GTF
- PDX
2 stops20h 16m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 7/316:19 am
PDX
- GTF
1 stop9h 10m
Alaska Airlines
Tue 8/45:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 6/6. 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 8/146:22 pm
GTF
- PDX
1 stop6h 22m
Delta
Deal found 6/6![Delta logo]()
$444
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 8, 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 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 9/266:20 am
PDX
- GTF
1 stop9h 19m
Alaska Airlines
Wed 9/305:19 pm
GTF
- PDX
1 stop5h 42m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 6/7. 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 9/259:46 am
PDX
- GTF
1 stop6h 55m
Delta
Sun 9/271:15 pm
GTF
- PDX
2 stops9h 47m
Delta
Deal found 6/7![Delta logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 7/316:19 am
PDX
- GTF
1 stop9h 10m
Alaska Airlines
Tue 8/45:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 6/7. 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 8/105:08 pm
PDX
- GTF
1 stop4h 30m
Delta
Fri 8/146:22 pm
GTF
- PDX
1 stop6h 22m
Delta
Deal found 6/7![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 6/5. 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 8/106:19 am
PDX
- GTF
1 stop9h 10m
Alaska Airlines
Fri 8/145:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 6/8. 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 7/39:45 am
PDX
- GTF
1 stop6h 59m
Delta
Mon 7/136:25 pm
GTF
- PDX
2 stops6h 29m
Delta
Deal found 6/8![Delta logo]()
$490
Last-minute flights from Portland to Great FallsDiscover last-minute flight deals from Portland to Great Falls. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Great Falls. Data last updated June 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/2. 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 7/25:45 am
PDX
- GTF
1 stop5h 55m
Delta
Wed 7/86:25 pm
GTF
- PDX
1 stop6h 19m
Delta
Deal found 6/2![Delta logo]()
$498
This Delta deal was found by Cheapflights users on 6/3. 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 7/45:24 pm
PDX
- GTF
1 stop4h 16m
Delta
Sat 7/116:25 pm
GTF
- PDX
1 stop5h 13m
Delta
Deal found 6/3![Delta logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Sun 7/196:49 pm
PDX
- GTF
1 stop13h 40m
Multiple Airlines
Sun 7/269:10 pm
GTF
- PDX
2 stops20h 16m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 7/195:30 pm
PDX
- GTF
1 stop21h 59m
Alaska Airlines
Sun 7/265:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$574
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 7/316:19 am
PDX
- GTF
1 stop9h 10m
Alaska Airlines
Tue 8/45:09 pm
GTF
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 6/6. 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 7/315:30 am
PDX
- GTF
2 stops11h 12m
Delta
Tue 8/41:08 pm
GTF
- PDX
2 stops9h 54m
Delta
Deal found 6/6![Delta logo]()
$573
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 8, 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 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 6/258:42 pm
PDX
- GTF
1 stop11h 46m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 6/5. 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 6/255:45 am
PDX
- GTF
1 stop5h 55m
Delta
Deal found 6/5![Delta logo]()
$399
This Booking.com deal was found by Cheapflights users on 6/5. 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.
Thu 6/259:31 pm
PDX
- GTF
2 stops41h 58m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$737
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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $362 (Alaska Airlines) |
One-way from | $241 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
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 8, 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
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Sat 9/26
6:20 am-4:39 pm
1 stop9h 19m
Great Falls
Wed 9/30
5:19 pm-10:01 pm
1 stop5h 42m
$362
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Fri 9/25
9:46 am-5:41 pm
1 stop6h 55m
Great Falls
Sun 9/27
1:15 pm-10:02 pm
2 stops9h 47m
$390
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Fri 7/31
6:19 am-4:29 pm
1 stop9h 10m
Great Falls
Tue 8/4
5:09 pm-10:25 pm
1 stop6h 16m
$424
Quickest round-trip
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Mon 8/10
5:08 pm-10:38 pm
1 stop4h 30m
Great Falls
Fri 8/14
6:22 pm-11:44 pm
1 stop6h 22m
$444
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Mon 8/10
6:19 am-4:29 pm
1 stop9h 10m
Great Falls
Fri 8/14
5:09 pm-10:25 pm
1 stop6h 16m
$444
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Fri 7/3
9:45 am-5:44 pm
1 stop6h 59m
Great Falls
Mon 7/13
6:25 pm-11:54 pm
2 stops6h 29m
$490
Cheapest one-way
Quickest one-way
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Thu 6/25
5:45 am-12:40 pm
1 stop5h 55m
$399
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Thu 6/25
12:26 pm-9:28 am
2 stops20h 02m
$444
PortlandGreat Falls
PDX - GTF
PDXGTF
Portland
Thu 6/25
9:31 pm-4:29 pm
2 stops41h 58m
$737
Sorted 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, February is the cheapest month in which you can book a flight from Portland to Great Falls (average of $231). 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 8, 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
Food
7.1
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
7.9
Boarding
8.1
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
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Complete your trip
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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 8, 2026.
Portland and Great Falls flights
Browse other Portland and Great Falls flight options. Last updated on June 8, 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 8, 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$186 | Average$374 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$575 | FlexibilityNo cancel fee | On-time75% |