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$204+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
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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 July 11, 2025.

Round-trip from

$319
(Delta)

One-way from

$204
(Delta)

Popular in

May

Cheapest in

July

Average price

$238
From Helena to Portland
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One-way flight from Helena to Portland
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Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 11, 2025.

This Delta deal was found by Cheapflights users on 7/9. 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 8/175:50 amHLN - PDX
1 stop4h 01mDelta
Thu 8/215:05 pmPDX - HLN
1 stop4h 08mDelta
Deal found 7/9$319
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 9/54:02 pmHLN - PDX
1 stop6h 23mAlaska Airlines
Mon 9/81:24 pmPDX - HLN
1 stop24h 57mAlaska Airlines
Deal found 7/10$340
This United Airlines deal was found by Cheapflights users on 7/9. 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.
Mon 8/45:39 pmHLN - PDX
2 stops31h 56mUnited Airlines
Fri 8/86:43 pmPDX - HLN
1 stop21h 12mUnited Airlines
Deal found 7/9$516

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 July 11, 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

Sun 8/17

5:50 am-8:51 am

1 stop4h 01m

Portland

Thu 8/21

5:05 pm-10:13 pm

1 stop4h 08m

$319

HelenaPortland

HLN - PDX

HLNPDX

Helena

Fri 9/5

4:02 pm-9:25 pm

1 stop6h 23m

Portland

Mon 9/8

1:24 pm-3:21 pm

1 stop24h 57m

$340

HelenaPortland

HLN - PDX

HLNPDX

Helena

Mon 8/4

5:39 pm-12:35 am

2 stops31h 56m

Portland

Fri 8/8

6:43 pm-4:55 pm

1 stop21h 12m

$516

HelenaPortland

HLN - PDX

HLNPDX

Helena

Tue 7/29

5:50 am-8:52 am

1 stop4h 02m

$204

HelenaPortland

HLN - PDX

HLNPDX

Helena

Tue 7/22

4:09 pm-8:50 pm

2 stops29h 41m

$248

HelenaPortland

HLN - PDX

HLNPDX

Helena

Tue 7/29

6:30 am-10:16 pm

1 stop16h 46m

$367

HelenaPortland

HLN - PDX

HLNPDX

Helena

Tue 7/22

4:09 pm-8:08 pm

1 stop4h 59m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

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, November is the cheapest month in which you can book a flight from Helena to Portland (average of $277). Flying from Helena to Portland in March is currently the most expensive (average of $368). 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 July 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines 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
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,951 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,562 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    According to our current data, Delta ($319), Alaska Airlines ($340), and United Airlines ($516) offers the cheapest pricing from Helena to Portland. These flights start at 12% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Helena to Portland one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $204. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Helena to Portland for a low price.

  • 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, November is the cheapest month in which you can book a flight from Helena to Portland (average of $277). Flying from Helena to Portland in March is currently the most expensive (average of $368). 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 Helena?

Book flights to Helena if you plan to visit one of these locations
Seaside
Vancouver
Beaverton
Clackamas
Lincoln City
McMinnville
Lake Oswego
Hillsboro
Astoria
Long Beach
Cannon Beach
Tigard
Longview
Hood River
Depoe Bay
Woodburn
Stevenson
Pacific City
Troutdale
Gresham

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Alternative routes for Helena to Portland

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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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$428FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$367FlexibilityNo cancel feeOn-time75%

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