HLN - PDX

$131 Find Cheap Flights from Helena to Portland

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 4/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Portland, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$256
Overall average: $425
Alaska Airlines
Sat 4/18Sat 4/25
HLN - PDX • 1 stop
Cheapest one-way
$131
Alaska Airlines
Mon 4/20
HLN - PDX • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $256 (round-trip)
Alaska Airlines
Best reviews • 8.0 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
Insights
Insights
Top layover airports
Seattle (SEA)
Cheapest • Avg $415 (round-trip)
Salt Lake City (SLC)
Shortest trip • 4h 43m (one-way)
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 30% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Flight Deals
Booking Insights
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, Apr 18 - Sat, Apr 25
Alaska Airlines Logo
6:22 pm - 9:38 pm
HLN
-
PDX
4h 16m
1 stop
Alaska Airlines Logo
11:59 am - 5:45 pm
PDX
-
HLN
4h 46m
1 stop
$256Alaska Airlines
Sat, Apr 4 - Sat, Apr 11
Alaska Airlines Logo
6:22 pm - 12:35 pm
HLN
-
PDX
19h 13m
1 stop
Alaska Airlines Logo
9:00 am - 5:45 pm
PDX
-
HLN
7h 45m
1 stop
$283Alaska Airlines
Sat, Apr 4 - Sat, Apr 11
Alaska Airlines Logo
6:22 pm - 6:19 am
HLN
-
PDX
12h 57m
2 stops
Alaska Airlines Logo
9:00 am - 5:45 pm
PDX
-
HLN
7h 45m
1 stop
$291Alaska Airlines
Sat, Apr 11 - Wed, Apr 15
Delta Logo
5:30 am - 8:56 am
HLN
-
PDX
4h 26m
1 stop
Delta Logo
5:45 am - 12:24 pm
PDX
-
HLN
5h 39m
1 stop
$298Delta
Mon, Apr 13 - Fri, Apr 17
Alaska Airlines Logo
6:22 pm - 9:32 am
HLN
-
PDX
16h 10m
1 stop
Alaska Airlines Logo
2:34 pm - 5:45 pm
PDX
-
HLN
26h 11m
2 stops
$301Alaska Airlines
Wed, Apr 15 - Fri, Apr 17
Alaska Airlines Logo
6:22 pm - 9:32 am
HLN
-
PDX
16h 10m
1 stop
Alaska Airlines Logo
2:42 pm - 5:45 pm
PDX
-
HLN
26h 03m
1 stop
$303Alaska Airlines
Wed, Apr 15 - Fri, Apr 17
Alaska Airlines Logo
6:22 pm - 9:38 pm
HLN
-
PDX
4h 16m
1 stop
Alaska Airlines Logo
2:34 pm - 5:45 pm
PDX
-
HLN
26h 11m
2 stops
$305Alaska Airlines
Tue, Apr 14 - Thu, Apr 16
Alaska Airlines Logo
6:22 pm - 10:38 pm
HLN
-
PDX
5h 16m
1 stop
Alaska Airlines Logo
12:07 pm - 5:45 pm
PDX
-
HLN
4h 38m
1 stop
$310Alaska Airlines
Thu, Apr 16 - Sat, Apr 18
Alaska Airlines Logo
6:22 pm - 9:32 am
HLN
-
PDX
16h 10m
1 stop
Alaska Airlines Logo
2:48 pm - 5:45 pm
PDX
-
HLN
25h 57m
2 stops
$311Alaska Airlines
Sat, Apr 4 - Fri, Apr 10
Alaska Airlines Logo
6:22 pm - 9:38 pm
HLN
-
PDX
4h 16m
1 stop
Alaska Airlines Logo
9:00 am - 5:45 pm
PDX
-
HLN
7h 45m
1 stop
$318Alaska Airlines
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.

What is the cheapest month to fly from Helena to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helena to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Helena to Portland is July, where tickets cost $238 (return) on average. On the other hand, the most expensive months are November and May, where the average cost of round-trip tickets is $441 and $427 respectively.

Good to know

Low seasonJanuary
Cheapest flight$131
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 25% increase in price.
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 3 days, the lowest price for a flight from Helena to Portland was $131 for a one-way ticket and $256 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?

    oneworld, and SkyTeam are the airline alliances operating flights between Helena and Portland, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Helena to Portland, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Helena to Portland are Alaska Airlines and Delta. With an average price for the route of $350 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $441 and an overall rating of 7.9.

  • 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 airlines 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.
8.0
Alaska AirlinesOverall score based on 11985 reviews
8.1Boarding
8.5Crew
7.1Food
7.8Comfort
7.0Entertainment
Airline reviews

Plane destination at the Gates were mixed up at Spokane airport. Text from website didn't match rithet

8.0 ExcellentConnie, Mar 2026
TUS - PDX
Read more Alaska Airlines reviews

Plane destination at the Gates were mixed up at Spokane airport. Text from website didn't match rithet

It was fine. I upgraded to premium economy & lived the extra legroom. Unfortunately, I was seated next to a man who sniffled A LOT during the flight and had his earphones on so loud that I could hear the music sitting next to him!

I enjoyed the feet space in comparison to other airlines. The snacks were also better, great service and the pilot greeted and said hi which made me feel safer.

Well the seats were very tight but the plane was very clean, the attendance great and good entertainment. Maybe they had it, but I wanted a map on the app. Thanks

The tray wasn’t cleaned, it had crumbs from the last flight Other than that it was very comfortable by

SBP to PDX 2/17/2026. One person ahead of us at the counter. One ahead of is at TSA. First to board. First row, first class. First to be served. Food and service very good. First off the aircraft. Flight was nice other than some moderately hard bumps on climb out (please find a way to control that!). Air Force landing (none of that Navy slam you to the deck stuff). Wheel chair at the bottom of the ramp waiting for my wife. Luggage out quickly, walked right up to the parking shuttle bus. First stop on the bus. I like the EMB 175 aircraft. This was as close to a perfect flight as I will ever see. Bravo!

Everything was fine. The snacks are a little on the tiny side.

Santa Rosa Airport is the best! Glad to have experienced it.

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

Flight attendants made this flight wonderful. They made sure everyone had what they needed and anticipated future needs. They made adjustments as needed. It was clear this was an experienced crew.

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

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

Information on your arrival and departure airports