HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$172+ 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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
dic. 19 — dic. 261
vie. 12/19
vie. 12/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to Portland 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 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 noviembre 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(Delta)

One-way from

$172
(Alaska Airlines)

Popular in

May

Cheapest in

July

Average price

$441
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. 17% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 noviembre 19, 2025.

This Delta deal was found by Cheapflights users on 11/17. 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.
jue. 12/115:30 amHLN - PDX
1 stop4h 40mDelta
mar. 12/165:30 amPDX - HLN
1 stop5h 55mDelta
Deal found 11/17$321
This Alaska Airlines deal was found by Cheapflights users on 11/17. 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.
vie. 12/126:28 pmHLN - PDX
1 stop16h 04mAlaska Airlines
mar. 12/1610:40 amPDX - HLN
1 stop6h 11mAlaska Airlines
Deal found 11/17$325
This Alaska Airlines deal was found by Cheapflights users on 11/17. 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.
jue. 12/116:28 pmHLN - PDX
1 stop16h 04mAlaska Airlines
mar. 12/167:08 amPDX - HLN
2 stops9h 43mAlaska Airlines
Deal found 11/17$372
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/56:28 pmHLN - PDX
1 stop6h 51mAlaska Airlines
lun. 12/810:40 amPDX - HLN
1 stop6h 11mAlaska Airlines
Deal found 11/17$428
This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/41:06 pmHLN - PDX
1 stop6h 08mDelta
lun. 12/85:05 pmPDX - HLN
1 stop4h 25mDelta
Deal found 11/18$439
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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.
mié. 12/36:28 pmHLN - PDX
1 stop4h 59mAlaska Airlines
dom. 12/77:44 pmPDX - HLN
1 stop21h 07mAlaska Airlines
Deal found 11/18$537
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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.
jue. 12/46:28 pmHLN - PDX
1 stop6h 51mAlaska Airlines
lun. 12/85:47 pmPDX - HLN
2 stops23h 04mAlaska Airlines
Deal found 11/18$538
This United Airlines deal was found by Cheapflights users on 11/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/122:30 pmHLN - PDX
2 stops21h 33mUnited Airlines
mar. 12/161:00 pmPDX - HLN
3 stops23h 47mUnited Airlines
Deal found 11/17$578
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
mié. 12/36:28 pmHLN - PDX
1 stop4h 59mAlaska Airlines
vie. 12/57:08 amPDX - HLN
2 stops9h 43mAlaska Airlines
Deal found 11/19$596

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 noviembre 19, 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

sáb. 1/17

5:30 am-9:03 am

1 stop4h 33m

Portland

mar. 1/20

5:50 am-12:27 pm

1 stop5h 37m

$247

HelenaPortland

HLN - PDX

HLNPDX

Helena

mar. 3/10

4:36 pm-12:44 pm

1 stop21h 08m

Portland

mar. 3/17

8:30 am-3:59 pm

1 stop6h 29m

$283

HelenaPortland

HLN - PDX

HLNPDX

Helena

vie. 12/12

6:28 pm-9:32 am

1 stop16h 04m

Portland

mar. 12/16

10:40 am-5:51 pm

1 stop6h 11m

$325

HelenaPortland

HLN - PDX

HLNPDX

Helena

mié. 4/29

5:45 am-9:03 am

1 stop4h 18m

Portland

dom. 5/3

6:00 am-12:23 pm

1 stop5h 23m

$397

HelenaPortland

HLN - PDX

HLNPDX

Helena

jue. 12/11

6:28 pm-9:32 am

1 stop16h 04m

Portland

mar. 12/16

7:08 am-5:51 pm

2 stops9h 43m

$402

HelenaPortland

HLN - PDX

HLNPDX

Helena

vie. 12/5

6:28 pm-12:19 am

1 stop6h 51m

Portland

lun. 12/8

10:40 am-5:51 pm

1 stop6h 11m

$428

HelenaPortland

HLN - PDX

HLNPDX

Helena

jue. 12/4

1:06 pm-6:14 pm

1 stop6h 08m

Portland

lun. 12/8

5:05 pm-10:30 pm

1 stop4h 25m

$439

HelenaPortland

HLN - PDX

HLNPDX

Helena

vie. 1/2

6:32 pm-12:12 am

1 stop6h 40m

$172

HelenaPortland

HLN - PDX

HLNPDX

Helena

sáb. 1/3

6:32 pm-10:59 pm

1 stop5h 27m

$215

HelenaPortland

HLN - PDX

HLNPDX

Helena

vie. 12/5

6:28 pm-1:41 pm

2 stops20h 13m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 13 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 November.
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 $101). 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 noviembre 19, 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
11,318 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,318 reviews
Alaska Airlines
8.0
Very good
11,318 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,002 reviews
Alaska Airlines
8.0
Very good
11,318 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

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 4h 33m. Delta provides one of the quickest options available for as low as $247. Helena and Portland are separated by a distance of 512 mi. This flight may include one or multiple stops.

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

    According to our current data, Alaska Airlines ($177), and Delta ($178) offers the cheapest pricing from Helena to Portland. These flights start at 49% 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 $101). 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
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Gresham
Troutdale

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 for Helena to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Portland flights
Missoula to Portland flights
Kalispell to Portland flights
Bozeman to Boise flights
Billings to Eugene flights
Billings to Portland flights
Missoula to Boise flights
Missoula to Medford flights
Great Falls to Portland flights
Billings to Boise flights
Missoula to Eugene flights
Kalispell to Boise flights
Bozeman to Eugene flights
Bozeman to Medford flights
Helena to Medford flights
Helena to Boise flights
Billings to Medford flights
Great Falls to Boise flights
Helena to Eugene flights
Cody to Portland flights
Great Falls to Redmond flights
Billings to Redmond flights
Helena to Redmond flights
Bozeman to Redmond flights
Bozeman to North Bend flights
Great Falls to Eugene flights
Missoula to Pendleton flights
Helena to North Bend flights
Butte to Eugene flights
Butte to Portland flights

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 noviembre 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$177Average$337FlexibilityNo cancel feeOn-time75%
DeltaCheapest$178Average$441FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.