$283+ Cheap flights from Helena to Portland (HLN - PDX)
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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
Oct 28 — Nov 41
Round-trip
1 adult, Economy
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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
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Best
Last-minute
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Cheapest flights from Helena to PortlandExplore 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 September 28, 2026.
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 September 28, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 12/54:49 pm -
1 stop4h 04m
Tue 12/85:32 pm -
1 stop21h 40m
Deal found 9/27![Alaska Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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 12/124:49 pm -
1 stop5h 05m
Thu 1/148:30 am -
1 stop6h 53m
Deal found 9/26![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
1 stop5h 48m
Fri 11/63:31 pm -
2 stops19h 57m
Deal found 9/28![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
2 stops13h 45m
Sun 11/85:33 am -
1 stop5h 55m
Deal found 9/28![Delta logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:41 pm -
1 stop6h 14m
Fri 11/62:10 pm -
1 stop24h 54m
Deal found 9/28![Alaska Airlines logo]()
$459
This Expedia deal was found by Cheapflights users on 9/26. 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.
Fri 12/114:49 pm -
1 stop6h 03m
Thu 1/148:30 am -
1 stop6h 53m
Deal found 9/26![Alaska Airlines logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/295:26 pm -
1 stop19h 10m
Mon 11/210:35 am -
1 stop4h 29m
Deal found 9/23![Alaska Airlines logo]()
$474
Best flights from Helena to PortlandDiscover carefully curated flight deals from Helena to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
Discover carefully curated flight deals from Helena to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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 12/54:49 pm -
1 stop4h 04m
Tue 12/85:32 pm -
1 stop21h 40m
Deal found 9/24![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
2 stops13h 45m
Sun 11/85:33 am -
1 stop5h 55m
Deal found 9/28![Delta logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:41 pm -
1 stop6h 14m
Fri 11/62:10 pm -
1 stop24h 54m
Deal found 9/28![Alaska Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
1 stop5h 48m
Sat 11/75:35 am -
1 stop5h 53m
Deal found 9/28![Delta logo]()
$465
This Expedia deal was found by Cheapflights users on 9/26. 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.
Fri 12/114:49 pm -
1 stop6h 03m
Thu 1/148:30 am -
1 stop6h 53m
Deal found 9/26![Alaska Airlines logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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 12/124:49 pm -
1 stop5h 05m
Thu 1/147:30 am -
2 stops7h 53m
Deal found 9/26![Alaska Airlines logo]()
$461
Last-minute flights from Helena to PortlandDiscover last-minute flight deals from Helena to Portland. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Portland. Data last updated September 28, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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 10/105:26 pm -
1 stop4h 32m
Sun 10/1112:18 pm -
1 stop3h 31m
Deal found 9/25![Alaska Airlines logo]()
$677
This Delta deal was found by Cheapflights users on 9/24. 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 10/147:15 am -
1 stop5h 48m
Sat 10/175:15 pm -
1 stop4h 14m
Deal found 9/24![Delta logo]()
$642
This Delta deal was found by Cheapflights users on 9/27. 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 10/211:08 pm -
2 stops7h 52m
Wed 10/285:33 am -
1 stop5h 55m
Deal found 9/27![Delta logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 10/215:26 pm -
2 stops18h 26m
Wed 10/2810:48 am -
2 stops29h 01m
Deal found 9/27![Alaska Airlines logo]()
$599
This Delta deal was found by Cheapflights users on 9/24. 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 10/221:08 pm -
1 stop6h 04m
Tue 10/275:33 am -
1 stop5h 55m
Deal found 9/24![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 9/27. 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 10/221:08 pm -
1 stop6h 04m
Mon 10/265:15 pm -
1 stop4h 09m
Deal found 9/27![Delta logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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 10/235:26 pm -
2 stops21h 06m
Tue 10/277:18 am -
2 stops8h 31m
Deal found 9/24![Alaska Airlines logo]()
$674
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/295:26 pm -
1 stop19h 10m
Mon 11/210:35 am -
1 stop4h 29m
Deal found 9/23![Alaska Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 9/23. 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 10/291:08 pm -
2 stops11h 51m
Mon 11/25:15 pm -
1 stop4h 09m
Deal found 9/23![Delta logo]()
$490
One-way flights from Helena to PortlandSearch for one-way flight options from Helena to Portland. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
Search for one-way flight options from Helena to Portland. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This Delta deal was found by Cheapflights users on 9/27. 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 10/231:08 pm -
1 stop6h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Delta logo]()
$283
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 September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $413 (Alaska Airlines) |
One-way from | $283 (Delta) |
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 7,457,451 searches. Data last updated September 28, 2026.
Use the filters below to find and compare flights from Helena to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Fri 10/23
1:08 pm-6:12 pm
1 stop6h 04m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$283
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Sat 12/5
4:49 pm-7:53 pm
1 stop4h 04m
Portland
Tue 12/8
5:32 pm-4:12 pm
1 stop21h 40m
$413
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Wed 11/4
7:15 am-8:00 pm
2 stops13h 45m
Portland
Sun 11/8
5:33 am-12:28 pm
1 stop5h 55m
$454
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Thu 11/5
4:41 pm-9:55 pm
1 stop6h 14m
Portland
Fri 11/6
2:10 pm-4:04 pm
1 stop24h 54m
$459
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Fri 12/11
4:49 pm-9:52 pm
1 stop6h 03m
Portland
Thu 1/14
8:30 am-4:23 pm
1 stop6h 53m
$460
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Sat 12/12
4:49 pm-8:54 pm
1 stop5h 05m
Portland
Thu 1/14
7:30 am-4:23 pm
2 stops7h 53m
$461
HelenaPortland
HLN Helena - PDX Portland
HLNPDX
Helena
Wed 11/4
7:15 am-12:03 pm
1 stop5h 48m
Portland
Sat 11/7
5:35 am-12:28 pm
1 stop5h 53m
$465
Sorted by cheapest first
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 September.
| 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 Helena-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Portland flight deals on Cheapflights vs. FlightHub >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 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 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.
HLN-PDX
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 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 September 28, 2026.
Get a feel of what it's like to fly with 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.
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Cannon Beach
Vancouver
Kelso
Troutdale
Clackamas
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
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.
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Helena and Portland flights
Browse other Helena and Portland flight options. Last updated on September 28, 2026.
Other flights from Helena
Browse through other flights departing from Helena. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Popular flight searches
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Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Top airline flying from Helena to Portland
Discover the top airline 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 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$212 | Average$434 | FlexibilityNo cancel fee | On-timeN/A |