$198+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
Aug 2 — Aug 91
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
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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 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 July 3, 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 July 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Sat 11/74:41 pm
HLN
- PDX
1 stop6h 14m
Alaska Airlines
Tue 11/107:35 pm
PDX
- HLN
1 stop19h 29m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 9/155:18 pm
HLN
- PDX
1 stop24h 32m
Alaska Airlines
Fri 9/189:32 pm
PDX
- HLN
1 stop18h 09m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/205:34 pm
HLN
- PDX
1 stop20h 36m
Alaska Airlines
Tue 8/259:32 pm
PDX
- HLN
1 stop18h 02m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 11/144:41 pm
HLN
- PDX
1 stop4h 00m
Alaska Airlines
Tue 11/1710:30 am
PDX
- HLN
2 stops28h 34m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 8/195:11 pm
HLN
- PDX
1 stop20h 59m
Alaska Airlines
Sat 8/229:30 am
PDX
- HLN
1 stop6h 25m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 7/2. 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 8/205:40 am
HLN
- PDX
2 stops7h 05m
Delta
Tue 8/255:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/2![Delta logo]()
$410
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 July 3, 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 July 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Sat 11/74:41 pm
HLN
- PDX
1 stop6h 14m
Alaska Airlines
Tue 11/107:35 pm
PDX
- HLN
1 stop19h 29m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 7/1. 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 7/305:40 am
HLN
- PDX
1 stop3h 57m
Delta
Sun 8/25:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/1![Delta logo]()
$470
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 9/155:18 pm
HLN
- PDX
1 stop24h 32m
Alaska Airlines
Fri 9/189:32 pm
PDX
- HLN
1 stop18h 09m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/205:34 pm
HLN
- PDX
1 stop20h 36m
Alaska Airlines
Tue 8/259:32 pm
PDX
- HLN
1 stop18h 02m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 11/144:41 pm
HLN
- PDX
1 stop6h 14m
Alaska Airlines
Tue 11/179:09 am
PDX
- HLN
1 stop5h 55m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$395
Last-minute flights from Helena to PortlandDiscover last-minute flight deals from Helena to Portland. Data last updated July 3, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Portland. Data last updated July 3, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/1. 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 7/165:40 am
HLN
- PDX
1 stop3h 57m
Delta
Mon 7/205:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 7/1![Delta logo]()
$587
This Delta deal was found by Cheapflights users on 7/2. 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 7/2512:55 pm
HLN
- PDX
1 stop4h 14m
Delta
Sat 8/85:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/2![Delta logo]()
$470
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 7/255:09 pm
HLN
- PDX
1 stop5h 13m
Alaska Airlines
Sat 8/85:00 am
PDX
- HLN
1 stop10h 32m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$579
This Delta deal was found by Cheapflights users on 7/1. 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 7/2612:55 pm
HLN
- PDX
1 stop4h 14m
Delta
Mon 8/35:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/1![Delta logo]()
$495
This Delta deal was found by Cheapflights users on 7/1. 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 7/3012:55 pm
HLN
- PDX
2 stops10h 05m
Delta
Sun 8/25:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/1![Delta logo]()
$592
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Fri 7/315:09 pm
HLN
- PDX
1 stop7h 21m
Alaska Airlines
Sun 8/28:30 pm
PDX
- HLN
1 stop19h 02m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$603
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 8/195:11 pm
HLN
- PDX
1 stop20h 59m
Alaska Airlines
Sat 8/229:30 am
PDX
- HLN
1 stop6h 25m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/205:34 pm
HLN
- PDX
1 stop20h 36m
Alaska Airlines
Tue 8/259:32 pm
PDX
- HLN
1 stop18h 02m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 7/2. 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 8/205:40 am
HLN
- PDX
2 stops7h 05m
Delta
Tue 8/255:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 7/2![Delta logo]()
$410
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 July 3, 2026.
Search for one-way flight options from Helena to Portland. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:55 pm
HLN
- PDX
1 stop4h 08m
Delta
Deal found 7/3![Delta logo]()
$198
This Delta deal was found by Cheapflights users on 7/2. 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 9/212:55 pm
HLN
- PDX
2 stops10h 07m
Delta
Deal found 7/2![Delta logo]()
$203
This Delta deal was found by Cheapflights users on 7/1. 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 8/55:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 7/1![Delta logo]()
$208
This Delta deal was found by Cheapflights users on 7/1. 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 9/2512:57 pm
HLN
- PDX
2 stops8h 05m
Delta
Deal found 7/1![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 7/2. 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.
Mon 8/312:55 pm
HLN
- PDX
1 stop6h 10m
Delta
Deal found 7/2![Delta logo]()
$228
This Delta deal was found by Cheapflights users on 7/1. 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.
Mon 9/75:40 am
HLN
- PDX
2 stops6h 02m
Delta
Deal found 7/1![Delta logo]()
$233
This Delta deal was found by Cheapflights users on 6/28. 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.
Sun 7/195:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 6/28![Delta logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 9/15:11 pm
HLN
- PDX
2 stops21h 35m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$245
This Delta deal was found by Cheapflights users on 6/28. 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.
Sat 8/2912:55 pm
HLN
- PDX
2 stops10h 43m
Delta
Deal found 6/28![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 6/29. 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 7/2812:55 pm
HLN
- PDX
2 stops10h 05m
Delta
Deal found 6/29![Delta logo]()
$248
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/95:18 pm
HLN
- PDX
2 stops24h 18m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$256
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.
Wed 8/195:11 pm
HLN
- PDX
1 stop17h 22m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$257
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 July 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Alaska Airlines) |
One-way from | $198 (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 2,558,603 searches. Data last updated July 3, 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
HelenaPortland
HLN - PDX
HLNPDX
Helena
Sat 11/7
4:41 pm-9:55 pm
1 stop6h 14m
Portland
Tue 11/10
7:35 pm-4:04 pm
1 stop19h 29m
$363
HelenaPortland
HLN - PDX
HLNPDX
Helena
Tue 9/15
5:18 pm-4:50 pm
1 stop24h 32m
Portland
Fri 9/18
9:32 pm-4:41 pm
1 stop18h 09m
$373
HelenaPortland
HLN - PDX
HLNPDX
Helena
Thu 8/20
5:34 pm-1:10 pm
1 stop20h 36m
Portland
Tue 8/25
9:32 pm-4:34 pm
1 stop18h 02m
$383
HelenaPortland
HLN - PDX
HLNPDX
Helena
Sat 11/14
4:41 pm-9:55 pm
1 stop6h 14m
Portland
Tue 11/17
9:09 am-4:04 pm
1 stop5h 55m
$395
Quickest round-trip
HelenaPortland
HLN - PDX
HLNPDX
Helena
Thu 7/30
5:40 am-8:37 am
1 stop3h 57m
Portland
Sun 8/2
5:45 am-12:15 pm
1 stop5h 30m
$470
Cheapest one-way
HelenaPortland
HLN - PDX
HLNPDX
Helena
Tue 9/29
7:15 am-12:15 pm
1 stop6h 00m
$198
HelenaPortland
HLN - PDX
HLNPDX
Helena
Tue 9/15
7:15 am-12:15 pm
1 stop6h 00m
$198
HelenaPortland
HLN - PDX
HLNPDX
Helena
Wed 9/16
12:57 pm-8:02 pm
2 stops8h 05m
$203
HelenaPortland
HLN - PDX
HLNPDX
Helena
Sat 9/5
12:55 pm-10:38 pm
2 stops10h 43m
$203
HelenaPortland
HLN - PDX
HLNPDX
Helena
Wed 9/2
12:55 pm-10:02 pm
2 stops10h 07m
$203
Showing 1-10 of 14 resultsSorted 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 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 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 July 3, 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
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Kelso
Troutdale
Cannon Beach
Long Beach
McMinnville
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham
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Helena and Portland flights
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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 2,558,603 searches. Data last updated July 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$183 | Average$434 | FlexibilityNo cancel fee | On-timeN/A |