HLN - PDX

$196 Find Cheap Flights from Helena to Portland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Portland departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$343
Alaska Airlines
Sat 11/14Tue 11/17
HLN - PDX • 1 stop
Cheapest one-way
$196
Delta
Tue 9/29
HLN - PDX • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $343 (round-trip)
Delta
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Helena and Portland. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Seattle (SEA)
Cheapest • Avg $364 (round-trip)
Salt Lake City (SLC)
Shortest trip • 4h 50m (one-way)
Insights
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Flight Deals

Cheap Flights from Helena to Portland (HLN-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to Portland

Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
4:41 pm - 9:55 pm
HLN
-
PDX
6h 14m
1 stop
Alaska Airlines Logo
5:40 pm - 4:04 pm
PDX
-
HLN
21h 24m
1 stop
$343Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
4:41 pm - 9:55 pm
HLN
-
PDX
6h 14m
1 stop
Alaska Airlines Logo
5:40 pm - 4:04 pm
PDX
-
HLN
21h 24m
1 stop
$363Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
4:41 pm - 9:55 pm
HLN
-
PDX
6h 14m
1 stop
Alaska Airlines Logo
9:34 pm - 4:04 pm
PDX
-
HLN
17h 30m
2 stops
$371Alaska Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
5:26 pm - 8:28 am
HLN
-
PDX
16h 02m
1 stop
Alaska Airlines Logo
9:31 am - 4:49 pm
PDX
-
HLN
6h 18m
1 stop
$377Alaska Airlines
Thu, Nov 5 - Wed, Nov 18
Alaska Airlines Logo
4:41 pm - 1:14 pm
HLN
-
PDX
21h 33m
1 stop
Alaska Airlines Logo
7:05 am - 4:04 pm
PDX
-
HLN
7h 59m
1 stop
$383Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
4:41 pm - 8:50 pm
HLN
-
PDX
5h 09m
1 stop
Alaska Airlines Logo
5:50 pm - 4:04 pm
PDX
-
HLN
21h 14m
2 stops
$396Alaska Airlines
Mon, Aug 31 - Tue, Sep 1
Alaska Airlines Logo
5:11 pm - 10:01 pm
HLN
-
PDX
5h 50m
1 stop
Alaska Airlines Logo
5:07 am - 4:34 pm
PDX
-
HLN
10h 27m
1 stop
$401Alaska Airlines
Thu, Aug 20 - Tue, Sep 1
Delta Logo
12:55 pm - 4:03 pm
HLN
-
PDX
4h 08m
1 stop
Delta Logo
5:45 am - 12:15 pm
PDX
-
HLN
5h 30m
1 stop
$443Delta
Thu, Aug 20 - Tue, Sep 1
Delta Logo
12:55 pm - 7:44 pm
HLN
-
PDX
7h 49m
2 stops
Delta Logo
5:08 pm - 10:30 pm
PDX
-
HLN
4h 22m
1 stop
$448Delta
Sat, Aug 29 - Mon, Sep 7
Delta Logo
6:50 am - 12:10 pm
HLN
-
PDX
6h 20m
1 stop
Delta Logo
5:45 am - 12:15 pm
PDX
-
HLN
5h 30m
1 stop
$478Delta
Booking Insights

KAYAK's insights & trends for Helena to Portland flights

Get data-powered insights and trends into flights from Helena to Portland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Helena to Portland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Helena to Portland were found on Alaska Airlines ($343) and Delta ($443).

Find deals

Good to know

Cheapest flight

$196
Flight from Helena to Portland

When to book flights from Helena to Portland

Are your dates flexible? Find out the best times to travel from Helena to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to Portland

  • What is the cheapest flight from Helena to Portland?

    In the last 5 days, the lowest price for a flight from Helena to Portland was $196 for a one-way ticket and $343 for a round-trip.

  • Do I need a passport to fly between Helena and Portland?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Helena to Portland?

    When flying out of Helena you will be using Helena. You will be landing at Portland, also known as Portland.

  • Which aircraft models fly most regularly from Helena to Portland?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helena to Portland?

    SkyTeam is the only airline alliance operating flights between Helena and Portland.

  • How does KAYAK find such low prices on flights from Helena to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Helena with another airline. Booking your flights between Helena and PDX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Helena to Portland

 
See real verified KAYAK customer reviews for airlines flying from Helena to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8497 reviews
7.8Comfort
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
Airline reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

8.0 ExcellentMichael, Jul 2026
SEA - SMF
Read more Delta reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

Awful. There was an unexpected delay of nearly three hours because there were not enough flight attendants. I understand this is likely due to FAA regulations; but in that case, Delta should coordinate with smaller airports such as RDU to have extra flight attendants on the ground and "on call". In addition, this was the second 2-hour+ delay to Boston on this route in one week.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

The crew on this leg continue to be extremely helpful with my wife’s mobility issues. They also came by many many times to ensure we were comfortable and had drink some food.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

The Pilot was one of the best I've had, very informative about turbulence and got us to our destination early

I liked the cleanness in the bathroom and good crew on board and at boarding gates. There was no Hindi (Bollywood) movies. The entertainment can be improved as it is one of the worst one I saw when I compared it with other airlines. The Mumbai to Amsterdam flight did not have any food for my family which does not contain eggs in it though we have selected “Hindu Asian vegetarian meal”

Friendly boarding crew. Better could have been a bit more substantial food for this 3 plus hour flight.

Didn’t make the flight. My connecting flight was an hour late and I missed the flight. You rerouted me thru Atlanta and I arrived in Rome over 10 hour after my original Rome arrival time. You also left my luggage in Atlanta and it took you three day to get my bag to meI spent 4 days in the same cloths, I had packed my prescriptions in the lost bag and went 3 days withoutMy heart meds.

Everything you need to know for your flight from Helena to Portland

Information on your arrival and departure airports

Helena (HLN)
Portland (PDX)