$198+ Cheap flights from Portland to Helena (PDX - HLN)
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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — HLN
Aug 7 — Aug 141
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Helena 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 Helena
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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 July 8, 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 July 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 10/3110:51 am
PDX
- HLN
1 stop4h 20m
Alaska Airlines
Wed 11/44:41 pm
HLN
- PDX
1 stop7h 19m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$363
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:09 am
PDX
- HLN
1 stop8h 25m
Alaska Airlines
Mon 8/315:11 pm
HLN
- PDX
1 stop24h 38m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$393
This Orbitz deal was found by Cheapflights users on 7/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:09 am
PDX
- HLN
1 stop8h 32m
Alaska Airlines
Sun 9/205:18 pm
HLN
- PDX
1 stop5h 43m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/275:45 am
PDX
- HLN
1 stop5h 30m
Delta
Mon 8/315:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/7![Delta logo]()
$415
This Delta deal was found by Cheapflights users on 7/4. 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 11/256:00 am
PDX
- HLN
1 stop5h 24m
Delta
Mon 11/305:45 am
HLN
- PDX
1 stop4h 31m
Delta
Deal found 7/4![Delta logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 7/7. 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.
Tue 9/16:20 am
PDX
- HLN
1 stop9h 14m
Alaska Airlines
Sat 9/55:11 pm
HLN
- PDX
1 stop3h 39m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$443
This Priceline deal was found by Cheapflights users on 7/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:20 am
PDX
- HLN
1 stop6h 21m
Alaska Airlines
Mon 9/145:18 pm
HLN
- PDX
1 stop5h 43m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 7/6. 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.
Sat 8/85:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Thu 8/1312:55 pm
HLN
- PDX
1 stop6h 10m
Delta
Deal found 7/6![Delta logo]()
$455
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 July 8, 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 July 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 10/3110:51 am
PDX
- HLN
1 stop4h 20m
Alaska Airlines
Wed 11/44:41 pm
HLN
- PDX
1 stop7h 19m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 7/7. 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.
Sat 8/85:45 am
PDX
- HLN
1 stop5h 30m
Delta
Thu 8/135:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/7![Delta logo]()
$455
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:09 am
PDX
- HLN
1 stop8h 25m
Alaska Airlines
Mon 8/315:11 pm
HLN
- PDX
1 stop24h 38m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 7/8. 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.
Thu 8/205:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Sun 8/235:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/8![Delta logo]()
$475
This Alaska Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 9/16:20 am
PDX
- HLN
1 stop9h 14m
Alaska Airlines
Sat 9/55:11 pm
HLN
- PDX
1 stop3h 39m
Alaska Airlines
Deal found 7/5![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:35 am
PDX
- HLN
1 stop4h 57m
Alaska Airlines
Wed 8/125:09 pm
HLN
- PDX
2 stops17h 37m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$468
Last-minute flights from Portland to HelenaDiscover last-minute flight deals from Portland to Helena. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Helena. Data last updated July 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/5. 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.
Wed 7/225:45 am
PDX
- HLN
1 stop5h 30m
Delta
Tue 7/2812:55 pm
HLN
- PDX
1 stop6h 23m
Delta
Deal found 7/5![Delta logo]()
$536
This Priceline deal was found by Cheapflights users on 7/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:35 am
PDX
- HLN
1 stop4h 57m
Alaska Airlines
Wed 8/125:09 pm
HLN
- PDX
1 stop6h 16m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 7/6. 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.
Sat 8/85:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Thu 8/1312:55 pm
HLN
- PDX
1 stop6h 10m
Delta
Deal found 7/6![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 7/8. 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.
Thu 8/205:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Sun 8/235:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/8![Delta logo]()
$475
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:09 am
PDX
- HLN
1 stop8h 25m
Alaska Airlines
Mon 8/315:11 pm
HLN
- PDX
1 stop24h 38m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/275:45 am
PDX
- HLN
1 stop5h 30m
Delta
Mon 8/315:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/7![Delta logo]()
$415
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 July 8, 2026.
Search for one-way flight options from Portland to Helena. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
This Delta deal was found by Cheapflights users on 7/7. 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.
Tue 8/255:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Deal found 7/7![Delta logo]()
$198
This Delta deal was found by Cheapflights users on 7/4. 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 7/255:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/4![Delta logo]()
$243
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:53 pm
PDX
- HLN
2 stops21h 41m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$290
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:50 pm
PDX
- HLN
2 stops21h 21m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$315
This Booking.com deal was found by Cheapflights users on 7/4. 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 7/252:31 pm
PDX
- HLN
2 stops25h 01m
Alaska Airlines
Deal found 7/4![Alaska Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:46 pm
PDX
- HLN
3 stops17h 48m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
Mon 10/1211:15 pm
PDX
- HLN
3 stops39h 56m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$630
This Kiwi.com deal was found by Cheapflights users on 7/4. 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 7/259:48 pm
PDX
- HLN
3 stops17h 44m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$731
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 July 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Alaska Airlines) |
One-way from | $198 (Delta) |
Popular in | January |
Cheapest in | October |
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 2,558,603 searches. Data last updated July 8, 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
PortlandHelena
PDX - HLN
PDXHLN
Portland
Sat 10/31
10:51 am-4:11 pm
1 stop4h 20m
Helena
Wed 11/4
4:41 pm-11:00 pm
1 stop7h 19m
$363
PortlandHelena
PDX - HLN
PDXHLN
Portland
Thu 8/27
7:09 am-4:34 pm
1 stop8h 25m
Helena
Mon 8/31
5:11 pm-4:49 pm
1 stop24h 38m
$393
PortlandHelena
PDX - HLN
PDXHLN
Portland
Tue 9/1
6:20 am-4:34 pm
1 stop9h 14m
Helena
Sat 9/5
5:11 pm-7:50 pm
1 stop3h 39m
$443
PortlandHelena
PDX - HLN
PDXHLN
Portland
Sat 8/8
5:45 am-12:15 pm
1 stop5h 30m
Helena
Thu 8/13
5:40 am-8:37 am
1 stop3h 57m
$455
PortlandHelena
PDX - HLN
PDXHLN
Portland
Wed 8/5
10:35 am-4:32 pm
1 stop4h 57m
Helena
Wed 8/12
5:09 pm-9:46 am
2 stops17h 37m
$468
Quickest round-trip
PortlandHelena
PDX - HLN
PDXHLN
Portland
Thu 8/20
5:08 pm-10:30 pm
1 stop4h 22m
Helena
Sun 8/23
5:40 am-8:37 am
1 stop3h 57m
$475
Cheapest one-way
Quickest one-way
PortlandHelena
PDX - HLN
PDXHLN
Portland
Tue 8/25
5:08 pm-10:30 pm
1 stop4h 22m
$198
PortlandHelena
PDX - HLN
PDXHLN
Portland
Mon 10/12
9:28 am-4:11 pm
1 stop5h 43m
$243
PortlandHelena
PDX - HLN
PDXHLN
Portland
Sat 7/25
5:45 am-12:15 pm
1 stop5h 30m
$243
PortlandHelena
PDX - HLN
PDXHLN
Portland
Tue 8/25
5:53 pm-4:34 pm
2 stops21h 41m
$290
Showing 1-10 of 12 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 July.
| 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.
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 July 8, 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.
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Entertainment
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.0
Boarding
8.1
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.
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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 July 8, 2026.
Portland and Helena flights
Browse other Portland and Helena flight options. Last updated on July 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 July 8, 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 2,558,603 searches. Data last updated July 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$478 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$341 | Average$455 | FlexibilityNo cancel fee | On-time75% |