HLN - PDX

$130 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 8/12. 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

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
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Flights 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

Tue, Aug 12 - Thu, Aug 21
Delta Logo
1:00 pm - 6:00 pmHLN-PDX
6h 00m1 stop
Delta Logo
5:05 pm - 10:13 pmPDX-HLN
4h 08m1 stop
$338Delta
Find Deal
Tue, Aug 12 - Thu, Aug 21
Alaska Airlines Logo
4:08 pm - 7:52 amHLN-PDX
16h 44m1 stop
Alaska Airlines Logo
9:55 pm - 3:21 pmPDX-HLN
16h 26m2 stops
$389Alaska Airlines
Find Deal
Sun, Sep 14 - Fri, Sep 19
Alaska Airlines Logo
4:02 pm - 6:17 amHLN-PDX
15h 15m1 stop
Alaska Airlines Logo
7:00 am - 3:21 pmPDX-HLN
31h 21m2 stops
$394Alaska Airlines
Find Deal
Sun, Sep 14 - Fri, Sep 19
Alaska Airlines Logo
4:02 pm - 12:15 amHLN-PDX
9h 13m1 stop
Alaska Airlines Logo
9:40 am - 3:21 pmPDX-HLN
4h 41m1 stop
$395Alaska Airlines
Find Deal
Sun, Sep 14 - Fri, Sep 19
Alaska Airlines Logo
4:02 pm - 8:46 pmHLN-PDX
29h 44m2 stops
Alaska Airlines Logo
7:00 am - 3:21 pmPDX-HLN
31h 21m2 stops
$412Alaska Airlines
Find Deal
Tue, Aug 12 - Thu, Aug 21
Alaska Airlines Logo
4:08 pm - 4:48 pmHLN-PDX
25h 40m2 stops
Alaska Airlines Logo
9:55 pm - 3:21 pmPDX-HLN
16h 26m2 stops
$415Alaska Airlines
Find Deal
Tue, Aug 5 - Fri, Aug 8
Delta Logo
1:00 pm - 6:00 pmHLN-PDX
6h 00m1 stop
Delta Logo
5:05 pm - 10:47 pmPDX-HLN
4h 42m1 stop
$417Delta
Find Deal
Tue, Aug 5 - Fri, Aug 8
United Airlines Logo
5:39 pm - 9:32 amHLN-PDX
16h 53m1 stop
United Airlines Logo
3:40 pm - 1:58 pmPDX-HLN
21h 18m2 stops
$555United Airlines
Find Deal
Tue, Aug 5 - Fri, Aug 8
United Airlines Logo
5:39 pm - 2:40 pmHLN-PDX
22h 01m2 stops
United Airlines Logo
3:40 pm - 1:58 pmPDX-HLN
21h 18m2 stops
$616United Airlines
Find Deal
Mon, Aug 4 - Fri, Aug 8
United Airlines Logo
5:39 pm - 1:00 pmHLN-PDX
20h 21m1 stop
United Airlines Logo
3:40 pm - 1:58 pmPDX-HLN
21h 18m2 stops
$665United Airlines
Find Deal
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’s the cheapest day of the week to fly from Helena to Portland?

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

If your flying dates are flexible, you should consider flying to Portland on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Helena to Portland. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

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 May and April, where the average cost of round-trip tickets is $486 and $425 respectively.

Good to know

Low seasonApril
High seasonSeptember
Cheapest flight$130
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly with an average 7% 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 $130 for a one-way ticket and $338 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, oneworld, and Star Alliance are the airline alliances operating flights between Helena and Portland, with SkyTeam 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 $367 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 $428 and an overall rating of 8.0.

  • 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 10000 reviews
7.1Food
8.5Crew
8.1Boarding
7.1Entertainment
7.8Comfort
Airline reviews

Friendly staff, everything went smoothly. Gluten free snacks would would be the cherry on top!

10.0 ExcellentAnonymous, Jul 2025RDM - PDX
Read more Alaska Airlines reviews

Friendly staff, everything went smoothly. Gluten free snacks would would be the cherry on top!

There was no entertainment - perhaps they need to upgrade the planes that service a route that is more that 2 hours long? Otherwise, everything was perfect.

The most comfortable plane ride I’ve had in quite a while.

Wonderful staff who honored sleepy overnight travelers and still met needs quietly and quickly!

The setting on the loudspeaker was painful and the crew member who did the talking spoke very quickly and repetitively, with extra little jokes that were distracting and mostly unfunny. I doubt that the main messages penetrated the noise.

1. On time flights. All of our, three separate, flights for three families were late 2. No food on the 5 1/2 hour flight. A substantial snack would have been good. 3. Seat upgrades are expensive 4. No place to move around or stretch on the 5 1/2 hour flight

I like the new adjustable headrest. Unfortunately 2 crying children were in front of us. But it was the first time and not holding Alaska accountable for that. Alaska always seems to have everything in order professional but comfortable.

We had a birthday one day off and almost missed the plane Our fault

Great crew, smooth flight and landing. Wish they would offer Dr. Pepper and a choice of flavors of pretzels.

Thank you still providing bags for vomit. My son had a migraine and needed a bag to vomit in and it was right there behind the seat in front of us. Thank you!

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

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

Information on your arrival and departure airports

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