PDX - HLN

$168 Find Cheap Flights from Portland to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Helena departing on 1/30. 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 Helena

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Helena, 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 Portland to Helena, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$245
Overall average: $473
Alaska Airlines
Sat 2/28Tue 3/3
PDX - HLN • 1 stop
Cheapest one-way
$168
Alaska Airlines
Fri 1/30
PDX - HLN • 1 stop
When to travel
January
Cheapest • 38% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helena!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Helena (PDX-HLN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Helena 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 Portland to Helena

Sat, Feb 28 - Tue, Mar 3
Alaska Airlines Logo
7:05 am - 3:59 pm
PDX
-
HLN
7h 54m1 stop
Alaska Airlines Logo
4:36 pm - 8:49 am
HLN
-
PDX
17h 13m1 stop
$245Alaska Airlines
Sat, Feb 28 - Tue, Mar 3
Alaska Airlines Logo
6:00 am - 3:59 pm
PDX
-
HLN
8h 59m1 stop
Alaska Airlines Logo
4:36 pm - 11:44 pm
HLN
-
PDX
8h 08m1 stop
$264Alaska Airlines
Thu, Jan 22 - Sat, Jan 24
Alaska Airlines Logo
1:38 pm - 6:11 pm
PDX
-
HLN
3h 33m1 stop
Alaska Airlines Logo
6:48 pm - 9:29 am
HLN
-
PDX
15h 41m1 stop
$274Alaska Airlines
Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
5:35 pm - 6:11 pm
PDX
-
HLN
23h 36m1 stop
Alaska Airlines Logo
6:48 pm - 10:46 pm
HLN
-
PDX
4h 58m1 stop
$275Alaska Airlines
Thu, Jan 22 - Sun, Jan 25
Alaska Airlines Logo
1:38 pm - 6:11 pm
PDX
-
HLN
3h 33m1 stop
Alaska Airlines Logo
6:48 pm - 1:48 pm
HLN
-
PDX
20h 00m1 stop
$285Alaska Airlines
Sat, Feb 28 - Tue, Mar 3
Alaska Airlines Logo
6:00 am - 3:59 pm
PDX
-
HLN
8h 59m1 stop
Alaska Airlines Logo
4:36 pm - 6:11 am
HLN
-
PDX
14h 35m2 stops
$293Alaska Airlines
Thu, Jan 22 - Sun, Jan 25
Alaska Airlines Logo
1:38 pm - 6:11 pm
PDX
-
HLN
3h 33m1 stop
Alaska Airlines Logo
6:48 pm - 6:20 am
HLN
-
PDX
36h 32m2 stops
$313Alaska Airlines
Sat, Feb 28 - Tue, Mar 3
Alaska Airlines Logo
7:05 am - 3:59 pm
PDX
-
HLN
7h 54m1 stop
Alaska Airlines Logo
4:36 pm - 4:50 pm
HLN
-
PDX
25h 14m2 stops
$323Alaska Airlines
Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
5:35 pm - 6:11 pm
PDX
-
HLN
23h 36m1 stop
Alaska Airlines Logo
6:48 pm - 6:07 am
HLN
-
PDX
12h 19m2 stops
$333Alaska Airlines
Thu, Jan 22 - Sat, Jan 24
Alaska Airlines Logo
7:20 am - 6:11 pm
PDX
-
HLN
9h 51m2 stops
Alaska Airlines Logo
6:48 pm - 10:46 pm
HLN
-
PDX
4h 58m1 stop
$341Alaska Airlines
Booking Insights

KAYAK's insights & trends for Portland to Helena flights

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

What’s the cheapest day of the week to fly from Portland to Helena?

The average price of all round-trip flights from Portland to Helena clicked on KAYAK for each day over the last 12 months.

When flying from Portland to Helena, you should consider leaving on a Saturday and avoid Mondays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Helena, 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 Portland to Helena is January, where tickets cost $286 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $650 and $646 respectively.

Good to know

Low seasonJanuary
Cheapest flight$168
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Helena

When to book flights from Portland to Helena

Are your dates flexible? Find out the best times to travel from Portland to Helena 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 Portland to Helena

  • What is the cheapest flight from Portland to Helena?

    In the last 3 days, the lowest price for a flight from Portland to Helena was $168 for a one-way ticket and $245 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Portland to Helena?

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

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

    The two airlines most popular with KAYAK users for flights from Portland to Helena are Alaska Airlines and Delta. With an average price for the route of $469 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 $424 and an overall rating of 7.9.

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

    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 Portland to Helena.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from Portland 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 Portland to Helena?

    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 Helena with an airline and back to Portland with another airline. Booking your flights between Portland and HLN 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 Portland to Helena?

    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 Helena from Portland 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 Portland to Helena

 
See real verified KAYAK customer reviews for airlines flying from Portland to Helena. 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 Portland to Helena? 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 11465 reviews
8.1Boarding
7.0Entertainment
7.1Food
8.5Crew
7.8Comfort
Airline reviews

I liked that I made it onto the flight rather than “missing” the connection. We left PDX early in the morning along with half of Portland arriving at about the same time as we did- 2 hours prior to our flight leaving. The layover was for less than an hour and we were concerned that we would not make the connection, but as it turns out, the flight leaving LAX was even more delayed in departure due to needing some maintenance repair for the a/c of the plane. As for the food- it seems not so very nice that you are not feeding people and offering complementary alcohol on the international flights any more.

8.0 Excellentjanelle, Dec 2025
PDX - LAX
Read more Alaska Airlines reviews

I liked that I made it onto the flight rather than “missing” the connection. We left PDX early in the morning along with half of Portland arriving at about the same time as we did- 2 hours prior to our flight leaving. The layover was for less than an hour and we were concerned that we would not make the connection, but as it turns out, the flight leaving LAX was even more delayed in departure due to needing some maintenance repair for the a/c of the plane. As for the food- it seems not so very nice that you are not feeding people and offering complementary alcohol on the international flights any more.

Flight was delayed but still made it to Phoenix on time. Boarding went quickly, the flight was smooth.

The food selections were not good, and entertainment was non existent.

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

It was all good, no delays which was a worry. All great

It was a pleasant experience. Considering we paid over $3000 for first class there really wasn’t anything special about first class. All the seats looked the same and everyone got the same great customer service. The only thing that was different between first class and couch was the drinks and the meal. We wouldn’t waste that much $ on first class on that plane again.

This was more with the third party booking through Kayak but my KTN for Pre-TSA, even though I entered it, wasn't assigned to my ticket when I got to the airport. I had to go through regular security. Also the Alaska app had trouble loading my ticket in the first place and I had to ask for it to be printed. Alaska Airlines was great but wanted you to know about this hiccup in the ticketing interface.

Process of checking bag, boarding, etc. was all very quick, easy, and streamlined. Only problem I had was the seating: very cramped and uncomfortable, but I suppose that’s the perils of coach. Thankfully it wasn’t a super long flight so it didn’t ruin the experience overall.

The boarding was confusing because the PA system at PDX was so quiet you couldn’t hear anything being said . The seats were uncomfortable. The food was pretty bad and I normally don’t mind airplane food. The flight attendants were not friendly. I learned upon check in that Hawaiian airlines had reassigned our seats of the second leg of the trip. I had confirmed and paid for special seats but they put me and my companion on standard seats in different rows. Hawaiian also did the same on my return flight after the flight times had changed. I happened to go online to check my reservation and saw the flight had changed. I gad received no notice. I saw that my confirmed seats that I had paid extra were gone. After much back and forth with the airlines they refused to correct their error. I showed them confirmation documents of my seat reservation and receipt of payment but they refused to correct the seat change or reimburse me. I had to pay $200 again to reserve the original seats. Shameful and manipulative. They basically held me hostage. If I wanted to be in that flight I had to pay up.

When I bought my tickets I up great my seats for extra $104 each seats 8A and 8B in the way back from Portland to Palm Springs they gave me the seats 15. I thought it was for round trip same seats . So I was very disappointed ☹️

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

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

Information on your arrival and departure airports