$233+ Cheap flights from Portland to Helena (PDX - HLN)
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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — HLN
Nov 20 — Nov 271
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Helena 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 Helena
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to HelenaExplore the most affordable flight options available from Portland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
Explore the most affordable flight options available from Portland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 12/121:57 pm -
1 stop25h 15m
Tue 12/154:49 pm -
1 stop16h 46m
Deal found 10/18![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:26 am -
1 stop8h 46m
Fri 12/44:49 pm -
1 stop21h 39m
Deal found 10/19![Alaska Airlines logo]()
$523
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/242:52 pm -
1 stop23h 49m
Thu 12/314:18 pm -
1 stop4h 32m
Deal found 10/19![Alaska Airlines logo]()
$545
This Priceline deal was found by Cheapflights users on 10/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:30 am -
1 stop6h 42m
Tue 12/294:18 pm -
1 stop5h 36m
Deal found 10/20![Alaska Airlines logo]()
$618
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:59 pm -
1 stop17h 05m
Mon 11/234:53 pm -
1 stop6h 01m
Deal found 10/19![Alaska Airlines logo]()
$627
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 12/244:00 pm -
1 stop22h 41m
Mon 12/284:18 pm -
1 stop19h 58m
Deal found 10/20![Alaska Airlines logo]()
$643
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 11/16:08 am -
1 stop8h 56m
Thu 11/54:41 pm -
1 stop5h 09m
Deal found 10/17![Alaska Airlines logo]()
$697
Best flights from Portland to HelenaDiscover carefully curated flight deals from Portland to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
Discover carefully curated flight deals from Portland to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 1/308:30 am -
1 stop6h 53m
Tue 2/25:00 pm -
1 stop7h 53m
Deal found 10/20![Alaska Airlines logo]()
$413
This Expedia deal was found by Cheapflights users on 10/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/610:31 am -
1 stop4h 52m
Tue 1/125:00 pm -
1 stop6h 17m
Deal found 10/20![Alaska Airlines logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/510:31 am -
1 stop4h 52m
Fri 1/85:00 pm -
1 stop24h 42m
Deal found 10/21![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 12/121:57 pm -
1 stop25h 15m
Tue 12/154:49 pm -
1 stop16h 46m
Deal found 10/17![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:26 am -
1 stop8h 46m
Fri 12/44:49 pm -
1 stop21h 39m
Deal found 10/19![Alaska Airlines logo]()
$523
Last-minute flights from Portland to HelenaDiscover last-minute flight deals from Portland to Helena. Data last updated October 21, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Helena. Data last updated October 21, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:09 am -
1 stop7h 40m
Sat 10/245:26 pm -
1 stop3h 28m
Deal found 10/19![Alaska Airlines logo]()
$1,075
This Delta deal was found by Cheapflights users on 10/19. 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 10/235:33 am -
1 stop5h 55m
Sat 10/241:08 pm -
2 stops7h 52m
Deal found 10/19![Delta logo]()
$1,080
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 10/2612:18 pm -
1 stop3h 31m
Thu 10/295:26 pm -
2 stops16h 57m
Deal found 10/16![Alaska Airlines logo]()
$910
This Delta deal was found by Cheapflights users on 10/17. 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 10/305:33 am -
1 stop5h 55m
Sun 11/17:15 am -
1 stop5h 48m
Deal found 10/17![Delta logo]()
$821
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 11/16:08 am -
1 stop8h 56m
Thu 11/54:41 pm -
1 stop5h 09m
Deal found 10/17![Alaska Airlines logo]()
$697
This Delta deal was found by Cheapflights users on 10/17. 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 11/15:33 am -
1 stop5h 55m
Thu 11/57:15 am -
2 stops10h 49m
Deal found 10/17![Delta logo]()
$803
This Delta deal was found by Cheapflights users on 10/19. 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.
Wed 11/45:33 am -
1 stop5h 55m
Sun 11/87:15 am -
2 stops10h 49m
Deal found 10/19![Delta logo]()
$702
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:45 pm -
2 stops21h 19m
Sun 11/84:41 pm -
2 stops42h 02m
Deal found 10/19![Alaska Airlines logo]()
$872
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:59 pm -
1 stop17h 05m
Mon 11/234:53 pm -
1 stop6h 01m
Deal found 10/19![Alaska Airlines logo]()
$627
One-way flights from Portland to HelenaSearch for one-way flight options from Portland to Helena. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
Search for one-way flight options from Portland to Helena. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
This Delta deal was found by Cheapflights users on 10/19. 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.
Tue 1/56:00 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$233
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/14:00 pm -
1 stop22h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Alaska Airlines logo]()
$282
This Priceline deal was found by Cheapflights users on 10/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3110:30 am -
1 stop4h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Alaska Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 10/17. 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 11/65:33 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Sun 11/227:36 pm -
1 stop19h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$297
This Priceline deal was found by Cheapflights users on 10/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/57:09 am -
2 stops8h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 10/17. 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 11/55:33 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Delta logo]()
$349
This Priceline deal was found by Cheapflights users on 10/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:34 am -
2 stops7h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 11/77:59 pm -
2 stops19h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Alaska Airlines logo]()
$458
Find flight deals from Portland to Helena
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Helena (HLN). 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 October 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $426 (Expedia) |
One-way from | $233 (Delta) |
Popular in | July |
Cheapest in | November |
Average price | $641 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Helena 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 October 21, 2026.
Use the filters below to find and compare flights from Portland to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Tue 1/5
6:00 am-12:24 pm
1 stop5h 24m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$233
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Fri 1/1
4:00 pm-3:41 pm
1 stop22h 41m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$282
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Sat 11/7
5:35 am-12:28 pm
1 stop5h 53m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$293
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Mon 11/23
8:22 am-4:16 pm
1 stop6h 54m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$297
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Sun 11/22
7:36 pm-4:16 pm
1 stop19h 40m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$297
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Tue 1/5
7:09 am-4:23 pm
2 stops8h 14m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$325
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Thu 11/5
5:33 am-12:28 pm
1 stop5h 55m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$349
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Sat 1/30
8:30 am-4:23 pm
1 stop6h 53m
Helena
Tue 2/2
5:00 pm-11:53 pm
1 stop7h 53m
$413
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Wed 1/6
10:31 am-4:23 pm
1 stop4h 52m
Helena
Tue 1/12
5:00 pm-10:17 pm
1 stop6h 17m
$426
PortlandHelena
PDX Portland - HLN Helena
PDXHLN
Portland
Tue 1/5
10:31 am-4:23 pm
1 stop4h 52m
Helena
Fri 1/8
5:00 pm-4:42 pm
1 stop24h 42m
$428
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Portland to Helena
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 Helena in October.
| 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-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Helena 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-Helena 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 Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from Portland with our price prediction graph.
PDX-HLN
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 Helena
Reviews of airlines servicing Helena
Get insights into the airlines that provide service to Helena. 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 Helena. Reviews last updated October 21, 2026.
Read through reviews of airlines operating flights from Portland to Helena, such as Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Related info for your journey
Find useful and relevant information for your journey from Portland to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to Helena
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Complete your trip
Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Helena by cabin class
Find flights from Portland to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Helena
Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 21, 2026.
Portland and Helena flights
Browse other Portland and Helena flight options. Last updated on October 21, 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 October 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Portland to Helena
Discover the top 2 airlines that operate flights from Portland to Helena. 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 October 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$478 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$367 | Average$544 | FlexibilityNo cancel fee | On-time75% |