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$152+ Cheap flights from Helena to Portland (HLN - PDX)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Helena to Portland

Cheapest flights from Helena to Portland
Explore the most affordable flight options available from Helena to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 31, 2025.

This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amHLN - PDX
1 stop28h 51mUnited Airlines
Mon 1/59:00 amPDX - HLN
1 stop27h 41mUnited Airlines
Deal found 12/28$1,075

Find flight deals from Helena to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) 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 December 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$245
(Alaska Airlines)

One-way from

$152
(Alaska Airlines)

Popular in

May

Cheapest in

July

Average price

$251
Provider with most accurate pricing for Helena-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Portland flights.
Search Deals
From Helena to Portland
Search Deals
One-way flight from Helena to Portland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena 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 2,558,603 searches. Data last updated December 31, 2025.
Use the filters below to find and compare flights from Helena to Portland that are best for you.

Fly from

Helena

Fly to

Portland

Route

Depart

Return

Price

HelenaPortland

HLN - PDX

HLNPDX

Helena

Thu 2/26

4:36 pm-11:44 pm

1 stop8h 08m

Portland

Sun 3/1

8:30 am-3:59 pm

1 stop6h 29m

$264

HelenaPortland

HLN - PDX

HLNPDX

Helena

Thu 2/19

4:36 pm-11:44 pm

1 stop8h 08m

Portland

Mon 2/23

8:30 am-3:59 pm

1 stop6h 29m

$284

HelenaPortland

HLN - PDX

HLNPDX

Helena

Fri 1/30

6:48 pm-9:23 am

1 stop15h 35m

Portland

Wed 2/4

9:10 am-6:11 pm

1 stop8h 01m

$295

HelenaPortland

HLN - PDX

HLNPDX

Helena

Wed 1/28

6:48 pm-10:46 pm

1 stop4h 58m

Portland

Sat 1/31

7:34 am-6:11 pm

2 stops9h 37m

$303

HelenaPortland

HLN - PDX

HLNPDX

Helena

Thu 2/26

1:10 pm-8:31 am

2 stops20h 21m

Portland

Sun 3/1

1:27 pm-12:25 pm

2 stops21h 58m

$315

HelenaPortland

HLN - PDX

HLNPDX

Helena

Fri 2/13

1:10 pm-8:55 pm

2 stops8h 45m

Portland

Sun 2/15

5:45 am-12:25 pm

1 stop5h 40m

$320

HelenaPortland

HLN - PDX

HLNPDX

Helena

Sun 3/8

4:36 pm-8:49 am

1 stop17h 13m

Portland

Sat 3/14

3:52 pm-3:59 pm

1 stop23h 07m

$345

HelenaPortland

HLN - PDX

HLNPDX

Helena

Thu 2/12

4:36 pm-1:38 pm

2 stops22h 02m

Portland

Sun 2/15

8:30 am-3:59 pm

1 stop6h 29m

$353

HelenaPortland

HLN - PDX

HLNPDX

Helena

Thu 1/29

6:48 pm-12:09 am

1 stop6h 21m

$152

HelenaPortland

HLN - PDX

HLNPDX

Helena

Fri 5/15

4:43 pm-9:24 pm

1 stop5h 41m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 16 results
1
2

Compare providers for flights from Helena 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 Helena to Portland in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-Portland flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-Portland flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Helena-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-Portland flights, Cheapflights users trust eDreams the most. eDreams 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 Helena-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 Helena to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Helena with our price prediction graph.
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 Helena to Portland

What is the cheapest month to book a flight from Helena to Portland?

Currently, May is the cheapest month in which you can book a flight from Helena to Portland (average of $104). Flying from Helena to Portland in April is currently the most expensive (average of $190). 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.

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 December 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines and Delta from Helena to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,585 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,585 reviews
Alaska Airlines
8.0
Very good
11,585 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,012 reviews
Alaska Airlines
8.0
Very good
11,585 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Helena to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Helena to Portland?

    A quick flight from Helena to Portland can take about 8h 08m. Alaska Airlines provides one of the quickest options available for as low as $264. Helena and Portland are separated by a distance of 512 mi.

  • What are the cheapest airlines flying from Helena to Portland round-trip?

    According to our current data, Alaska Airlines ($147), and Delta ($158) offers the cheapest pricing from Helena to Portland. These flights start at 56% lower than the current average price 3 months from now.

  • Can I find deals for flights from Helena to Portland that include hotel bookings?

    Yes. In addition to deals on Helena to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Portland.

  • Can I find deals for business class flights from Helena to Portland?

    Yes. Cheapflights offers flight deals from Helena to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to Portland?

    Currently, May is the cheapest month in which you can book a flight from Helena to Portland (average of $104). Flying from Helena to Portland in April is currently the most expensive (average of $190). 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.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
Gresham

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Top 2 airlines flying from Helena to Portland

Discover the top 2 airlines that operate flights from Helena 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 2,558,603 searches. Data last updated December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$147Average$350FlexibilityNo cancel feeOn-time75%
DeltaCheapest$178Average$428FlexibilityNo cancel feeOn-timeN/A

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