HLN - PDX

$228 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 7/10. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$435
Typical prices: $324-$233
Delta
Wed 9/2Mon 9/7
HLN - PDX • 1 stop
Cheapest one-way
$228
Alaska Airlines
Fri 7/10
HLN - PDX • 1 stop
Top airlines
Cheapest • from $435 (round-trip)
Best reviews • 7.9 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
Cheapest • Avg $364 (round-trip)
Shortest trip • 4h 48m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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

Wed, Sep 2 - Mon, Sep 7
Delta Logo
12:50 pm - 6:11 pm
HLN
-
PDX
6h 21m
1 stop
Delta Logo
5:05 pm - 10:34 pm
PDX
-
HLN
4h 29m
1 stop
$435Delta
Sat, May 23 - Wed, May 27
Alaska Airlines Logo
4:43 pm - 9:49 am
HLN
-
PDX
18h 06m
2 stops
Alaska Airlines Logo
9:44 am - 4:06 pm
PDX
-
HLN
5h 22m
1 stop
$438Alaska Airlines
Thu, Jul 9 - Sat, Jul 11
Alaska Airlines Logo
5:09 pm - 10:25 pm
HLN
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
12:03 pm - 4:32 pm
PDX
-
HLN
3h 29m
1 stop
$455Alaska Airlines
Fri, May 22 - Tue, May 26
Alaska Airlines Logo
4:43 pm - 9:28 pm
HLN
-
PDX
5h 45m
1 stop
Alaska Airlines Logo
5:00 am - 4:06 pm
PDX
-
HLN
10h 06m
1 stop
$458Alaska Airlines
Thu, Aug 13 - Sat, Aug 15
Delta Logo
5:35 am - 8:37 am
HLN
-
PDX
4h 02m
1 stop
Delta Logo
5:17 pm - 10:25 pm
PDX
-
HLN
4h 08m
1 stop
$465Delta
Sat, May 23 - Wed, May 27
Alaska Airlines Logo
4:43 pm - 9:28 pm
HLN
-
PDX
5h 45m
1 stop
Alaska Airlines Logo
9:44 am - 4:06 pm
PDX
-
HLN
5h 22m
1 stop
$479Alaska Airlines
Wed, Jul 15 - Sun, Jul 19
Alaska Airlines Logo
5:09 pm - 10:25 pm
HLN
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
6:19 am - 4:32 pm
PDX
-
HLN
9h 13m
1 stop
$482Alaska Airlines
Sat, May 23 - Wed, May 27
Alaska Airlines Logo
4:43 pm - 9:49 am
HLN
-
PDX
18h 06m
2 stops
Alaska Airlines Logo
9:07 pm - 4:06 pm
PDX
-
HLN
17h 59m
2 stops
$490Alaska Airlines
Sat, May 23 - Wed, May 27
Alaska Airlines Logo
4:43 pm - 9:49 am
HLN
-
PDX
18h 06m
2 stops
Alaska Airlines Logo
9:44 am - 4:06 pm
PDX
-
HLN
5h 22m
1 stop
$498Alaska Airlines
Fri, Jul 10 - Wed, Jul 15
Alaska Airlines Logo
5:09 pm - 10:25 pm
HLN
-
PDX
6h 16m
1 stop
Alaska Airlines Logo
12:03 pm - 4:32 pm
PDX
-
HLN
3h 29m
1 stop
$502Alaska 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.

How much is a round-trip flight from Helena to Portland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Helena to Portland departing in September.

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 April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are May and November, where the average cost of round-trip tickets is $457 and $441 respectively.

Good to know

Low seasonJuly
Cheapest flight$228
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 35% 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 $228 for a one-way ticket and $435 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, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Helena to Portland are Delta and Alaska Airlines. With an average price for the route of $428 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $350 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.
7.9
Alaska AirlinesOverall score based on 12332 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

Couldn’t order food for the family because all the good food was unavailable. We opted for bringing something on with us. I also didn’t like that I had to have T-mobile for online movies. Stupid.

6.0 Gooddiane, May 2026
OGG - PDX
Read more Alaska Airlines reviews

Couldn’t order food for the family because all the good food was unavailable. We opted for bringing something on with us. I also didn’t like that I had to have T-mobile for online movies. Stupid.

Alaska is by far the best airline to fly with 😍

The flight crew home was so, so friendly and HILARIOUS. I’ll keep flying Alaska like I have for the last 30+ years!

Deboarding the plane was chaos. The passengers in the back of the plane started deplaning before the passengers in the middle of the plane could even retrieve their overhead bags. The staff of the plane did nothing to help.

Enforce the one bag rule for carry ons. Don't allow people to have 2 and 3 carry ons. Make baggage gets loaded onto the correct plane. My bag didn't get put onto my last flight so I didn't get it until the next day.

onboard snack was pretzels, but the FA was super nice when my neighbor asked for cookies instead and also brought some for me. :)

On time. .breakfast was especially good. First class service was special

Had to buy a snack box as I am gluten free. They should be free in extra comfort. Food they provided was awful. Not enough water stops.

Tight hot cramped seating. Gate change plus a board and de plane request with two hour delay

We treated ourselves to first class and were underwhelmed by the experience. No screen for entertainment. Food was not great...only one or two options, small portions, dry. We won't waste our money upgrading again. Good news was we made it to PDX safe and sound. Crew was attentive.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

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

Information on your arrival and departure airports