$167+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — PDX
Jul 11 — Jul 181
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
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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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 10/214:48 pm
HLN
- PDX
1 stop6h 11m
Alaska Airlines
Sat 10/2410:51 am
PDX
- HLN
1 stop4h 20m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 6/7. 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 8/245:40 am
HLN
- PDX
1 stop3h 57m
Delta
Wed 9/25:08 pm
PDX
- HLN
1 stop4h 22m
Delta
Deal found 6/7![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 6/9. 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.
Mon 10/1212:50 pm
HLN
- PDX
1 stop6h 27m
Delta
Fri 10/235:05 pm
PDX
- HLN
1 stop4h 36m
Delta
Deal found 6/9![Delta logo]()
$363
This Orbitz deal was found by Cheapflights users on 6/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:18 pm
HLN
- PDX
2 stops17h 03m
Alaska Airlines
Wed 10/77:06 am
PDX
- HLN
1 stop8h 05m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 6/7. 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 7/105:40 am
HLN
- PDX
1 stop3h 57m
Delta
Sun 7/125:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 6/7![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 6/11. 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
Tue 7/285:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 6/11![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/41:00 pm
HLN
- PDX
1 stop4h 19m
Delta
Sat 7/115:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 6/9![Delta logo]()
$470
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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 10/214:48 pm
HLN
- PDX
1 stop6h 11m
Alaska Airlines
Sat 10/2410:51 am
PDX
- HLN
1 stop4h 20m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 6/9. 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.
Mon 10/1212:50 pm
HLN
- PDX
2 stops10h 14m
Delta
Fri 10/236:00 am
PDX
- HLN
1 stop5h 24m
Delta
Deal found 6/9![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 6/7. 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 7/105:40 am
HLN
- PDX
1 stop3h 57m
Delta
Sun 7/125:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 6/7![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 6/11. 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 11/2012:50 pm
HLN
- PDX
2 stops10h 14m
Delta
Sun 11/225:05 pm
PDX
- HLN
1 stop4h 36m
Delta
Deal found 6/11![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 6/9. 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 7/51:00 pm
HLN
- PDX
1 stop4h 19m
Delta
Sat 7/115:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 6/9![Delta logo]()
$470
This Delta deal was found by Cheapflights users on 6/9. 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.
Fri 7/35:35 am
HLN
- PDX
1 stop4h 04m
Delta
Sun 7/55:45 am
PDX
- HLN
1 stop5h 35m
Delta
Deal found 6/9![Delta logo]()
$485
Last-minute flights from Helena to PortlandDiscover last-minute flight deals from Helena to Portland. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Portland. Data last updated June 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/9. 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.
Thu 7/25:35 am
HLN
- PDX
1 stop4h 04m
Delta
Sun 7/55:45 am
PDX
- HLN
1 stop5h 35m
Delta
Deal found 6/9![Delta logo]()
$485
This Delta deal was found by Cheapflights users on 6/9. 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.
Fri 7/35:35 am
HLN
- PDX
2 stops7h 07m
Delta
Sun 7/55:45 am
PDX
- HLN
1 stop5h 35m
Delta
Deal found 6/9![Delta logo]()
$490
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/41:00 pm
HLN
- PDX
1 stop4h 19m
Delta
Sat 7/115:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 6/9![Delta logo]()
$470
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/45:09 pm
HLN
- PDX
1 stop6h 16m
Alaska Airlines
Fri 7/105:30 pm
PDX
- HLN
1 stop22h 02m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:09 pm
HLN
- PDX
1 stop6h 16m
Alaska Airlines
Sun 7/129:19 am
PDX
- HLN
1 stop6h 13m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 6/7. 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 7/105:40 am
HLN
- PDX
1 stop3h 57m
Delta
Sun 7/125:45 am
PDX
- HLN
1 stop5h 30m
Delta
Deal found 6/7![Delta logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 7/135:09 pm
HLN
- PDX
2 stops21h 39m
Alaska Airlines
Sat 7/189:19 am
PDX
- HLN
1 stop6h 13m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$521
This Delta deal was found by Cheapflights users on 6/11. 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
Tue 7/285:14 pm
PDX
- HLN
1 stop4h 25m
Delta
Deal found 6/11![Delta logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 7/305:09 pm
HLN
- PDX
1 stop19h 12m
Alaska Airlines
Thu 8/1312:03 pm
PDX
- HLN
1 stop3h 29m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$504
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 June 11, 2026.
Search for one-way flight options from Helena to Portland. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:11 pm
HLN
- PDX
1 stop3h 39m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$167
This Delta deal was found by Cheapflights users on 6/8. 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 stops7h 49m
Delta
Deal found 6/8![Delta logo]()
$172
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 6/10![Delta logo]()
$177
This Delta deal was found by Cheapflights users on 6/9. 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.
Fri 8/285:40 am
HLN
- PDX
2 stops7h 05m
Delta
Deal found 6/9![Delta logo]()
$187
This Delta deal was found by Cheapflights users on 6/8. 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 7/225:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 6/8![Delta logo]()
$208
This Delta deal was found by Cheapflights users on 6/8. 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 6/8![Delta logo]()
$213
This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:11 pm
HLN
- PDX
1 stop5h 50m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 6/9. 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.
Mon 8/315:40 am
HLN
- PDX
2 stops6h 02m
Delta
Deal found 6/9![Delta logo]()
$220
This Delta deal was found by Cheapflights users on 6/9. 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.
Thu 7/95:40 am
HLN
- PDX
1 stop3h 57m
Delta
Deal found 6/9![Delta logo]()
$228
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $333 (Alaska Airlines) |
One-way from | $167 (Priceline) |
Popular in | November |
Cheapest in | August |
Average price | $377 |
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 June 11, 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
Wed 10/21
4:48 pm-9:59 pm
1 stop6h 11m
Portland
Sat 10/24
10:51 am-4:11 pm
1 stop4h 20m
$333
HelenaPortland
HLN - PDX
HLNPDX
Helena
Mon 10/12
12:50 pm-10:04 pm
2 stops10h 14m
Portland
Fri 10/23
6:00 am-12:24 pm
1 stop5h 24m
$368
HelenaPortland
HLN - PDX
HLNPDX
Helena
Fri 7/10
5:40 am-8:37 am
1 stop3h 57m
Portland
Sun 7/12
5:45 am-12:15 pm
1 stop5h 30m
$455
HelenaPortland
HLN - PDX
HLNPDX
Helena
Fri 11/20
12:50 pm-10:04 pm
2 stops10h 14m
Portland
Sun 11/22
5:05 pm-10:41 pm
1 stop4h 36m
$460
Quickest round-trip
HelenaPortland
HLN - PDX
HLNPDX
Helena
Sun 7/5
1:00 pm-4:19 pm
1 stop4h 19m
Portland
Sat 7/11
5:14 pm-10:39 pm
1 stop4h 25m
$470
HelenaPortland
HLN - PDX
HLNPDX
Helena
Fri 7/3
5:35 am-8:39 am
1 stop4h 04m
Portland
Sun 7/5
5:45 am-12:20 pm
1 stop5h 35m
$485
Cheapest one-way
HelenaPortland
HLN - PDX
HLNPDX
Helena
Sun 9/6
12:55 pm-4:03 pm
1 stop4h 08m
$182
Quickest one-way
HelenaPortland
HLN - PDX
HLNPDX
Helena
Tue 7/21
5:40 am-8:37 am
1 stop3h 57m
$208
HelenaPortland
HLN - PDX
HLNPDX
Helena
Wed 7/22
5:40 am-8:37 am
1 stop3h 57m
$208
HelenaPortland
HLN - PDX
HLNPDX
Helena
Wed 8/12
12:55 pm-4:03 pm
1 stop4h 08m
$208
Showing 1-10 of 15 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 June.
| 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.
Cheapflights Insights
Everything you need to know about your flight from Helena to Portland
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 June 11, 2026.
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.
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham
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Helena and Portland flights
Browse other Helena and Portland flight options. Last updated on June 11, 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 June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 11, 2026.
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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$142 | Average$385 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$147 | Average$270 | FlexibilityNo cancel fee | On-time75% |