$124 Find Cheap Flights from Portland to Montana - 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 Portland to Montana departing on 8/19. 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 Montana

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Montana, 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 Montana, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Portland to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozemannonstop$217
Kalispell
Kalispellnonstop$329
Missoula
Missoulanonstop$237
Billings
Billingsnonstop$237
Great Falls
Great Falls1 stop$362
Helena
Helena1 stop$333
Butte
Butte1 stop$352
Bozeman
Bozemannonstop$217
Kalispell
Kalispellnonstop$329
Missoula
Missoulanonstop$237
Billings
Billingsnonstop$237
Great Falls
Great Falls1 stop$362
Helena
Helena1 stop$333
Butte
Butte1 stop$352

Book Cheap Portland to Montana Plane Tickets

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

Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
10:30 am - 1:22 pm
PDX
-
BZN
1h 52mnonstop
Alaska Airlines Logo
11:16 am - 5:00 pm
BZN
-
PDX
6h 44m
1 stop
$217Alaska Airlines
Fri, Oct 16 - Mon, Oct 19
Alaska Airlines Logo
10:30 am - 1:22 pm
PDX
-
BZN
1h 52mnonstop
Alaska Airlines Logo
3:35 pm - 4:27 pm
BZN
-
PDX
1h 52mnonstop
$227Alaska Airlines
Wed, Sep 9 - Fri, Sep 11
Southwest Logo
4:00 pm - 10:25 pm
PDX
-
BZN
5h 25m
1 stop
Southwest Logo
3:30 pm - 10:45 pm
BZN
-
PDX
8h 15m
1 stop
$232Southwest
Wed, Sep 9 - Fri, Sep 11
Southwest Logo
4:00 pm - 10:25 pm
PDX
-
BZN
5h 25m
1 stop
Southwest Logo
4:40 pm - 11:25 pm
BZN
-
PDX
7h 45m
2 stops
$237Southwest
Thu, Aug 20 - Tue, Aug 25
Delta Logo
5:08 pm - 12:04 am
PDX
-
BZN
5h 56m
1 stop
Delta Logo
6:00 am - 8:37 am
BZN
-
PDX
3h 37m
1 stop
$252Delta
Wed, Aug 19 - Sun, Aug 23
Delta Logo
5:08 pm - 10:25 pm
PDX
-
BIL
4h 17m
1 stop
Delta Logo
5:20 am - 8:37 am
BIL
-
PDX
4h 17m
1 stop
$272Delta
Sun, Aug 9 - Wed, Aug 12
Multiple Airlines Logo
6:49 pm - 9:40 am
PDX
-
FCA
13h 51m
1 stop
Multiple Airlines Logo
4:29 pm - 6:08 pm
FCA
-
PDX
26h 39m
1 stop
$360Multiple Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
4:07 pm - 10:45 pm
PDX
-
COD
5h 38m
1 stop
United Airlines Logo
5:53 pm - 10:54 pm
COD
-
PDX
6h 01m
1 stop
$378United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
9:00 am - 10:45 pm
PDX
-
COD
12h 45m
2 stops
United Airlines Logo
5:53 pm - 10:54 pm
COD
-
PDX
6h 01m
1 stop
$384United Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
6:19 pm - 10:04 am
PDX
-
FCA
14h 45m
1 stop
Multiple Airlines Logo
3:39 pm - 4:57 pm
FCA
-
PDX
26h 18m
2 stops
$396Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Montana flights

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

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

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

What is the cheapest Portland to Montana flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Montana from Portland found in the last 5 days was to Missoula, at $308 round-trip. The most popular route is from Portland (PDX) to Billings (BIL), and the cheapest round-trip airline ticket found on this route in the last 5 days was $317.

What is the cheapest time of day to fly to Montana?

The average price for all round-trip flights from Portland to Montana depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Montana is generally at night, when round-trip flights cost $157 on average. The most expensive time of day to fly to Montana is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $448.

Can I save money by flying with a layover from Portland to Montana?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $436, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Montana, 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 Montana is March, when tickets cost $88 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $261 and $197 respectively.

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

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

If you are looking for a flight deal from Portland to Montana, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Montana, Thursday is the cheapest day to fly and Monday is the most expensive.

How far in advance should I book a flight from Portland to Montana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Montana, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Montana, you should book around 4 weeks before departure, which saves you about 62% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$124
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Portland to Billings

FAQs - booking Montana flights

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

    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 Montana.

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

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

    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 from Portland to Montana with an airline and back with another airline.

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

    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 from Portland to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Portland to Montana

 
See real verified KAYAK customer reviews for airlines flying from Portland to Montana. 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 Montana? 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 12517 reviews
7.8Comfort
7.0Entertainment
8.5Crew
7.1Food
8.1Boarding
Airline reviews

Great trip. No complaints. Impressed with the crew’s response to various challenges pre-boarding.

10.0 ExcellentAnonymous, Jun 2026
PDX - OAK
Read more Alaska Airlines reviews

Great trip. No complaints. Impressed with the crew’s response to various challenges pre-boarding.

We were 35 minutes late because the caterer had not stocked the plane. Plane was fully loaded and ready to go 15 minutes before departure time. We sat there 35 minutes?

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

Internet was great. It was nice to watch a movie. The crew was very nice.

On this flight there wer only 25 people on board. So no one in 5 rows ahead of me and noone in 7 rows behind me. So very chill.

Considering my flight to Portland was in a broken chair that I had paid extra for, this one was great. So yeah, wonderful.

Some food or at least snacks need to be offered on long flights. I thought I had ordered food for my husband and I prior to the flight, but was told during the flight that I had not. Perhaps, if you must charge extra for food, let people order on board. We did get some food, which evidently others had decided they didn’t want onboard, but it wasn’t very good. We did like the adherence to takeoff and landing times, and the quick return of our luggage.

Our meal order was screwed up. We had to choose from basic boxes. I was not happy.

very nice blankets and comfortable seats. great service. Great flights.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Flight delayed two hours , missed connection flight then connection cancelled- horrible experience with hotel

Omg the disaster at the security was on another level! “Go to this end, sorry closed now, go to that end”. Ridiculous! This took over an hour! As far as the airline was concerned although I booked nearly a year ago I couldn’t get my bag tag - stand in another 15 minute line or my seat on Hawaiian Airlines- 5 more minutes! Then my TSA status was denied. Like what the heck! Makes a person not want to travel with this amount of incompetence

The Honolulu Hub needs 2 to 3 times the amount of things to do as well as shuttles that transport to/from gates and terminals. Arriving from OCONUS locations; transferring to CONUS locations its a miserable experience. Fetching and re-checking bags, then returning to a gate across the airport take longer than any other large airport. If youre confused by what I mean, the process goes like this: Disembark plane Walk a mile to the main terminal Walk half a mile to baggage claim Wait 40 minutes for baggage Walk a mile to re-check-in baggage Wait 20 minutes for checking in those bags Fo back through the wrong TSA line because the signage is poor Almost miss the connecting flight because your gate is across the airport.

The checking was disaster, the crew wasn't behave well. It took us two hours to check in, after that thr line at the TSA was long, we barely make the flight. Bad airline

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

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

Information on your arrival and departure airports