PWM - MSO

$232 Find Cheap Flights from Portland to Missoula

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 Missoula departing on 8/31. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Missoula

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Missoula, 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 Missoula, as well as popular online travel agencies
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Cheap Flight Deals from Portland to Missoula (PWM-MSO)

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

Recent round-trip flight deals from Portland to Missoula

KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to Missoula.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
American Airlines Logo
6:00 am - 11:33 pmPWM-MSO
19h 33m1 stop
American Airlines Logo
7:03 am - 5:35 pmMSO-PWM
8h 32m1 stop
$548American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
American Airlines Logo
6:00 am - 11:33 pmPWM-MSO
19h 33m1 stop
American Airlines Logo
7:03 am - 10:59 pmMSO-PWM
13h 56m2 stops
$553American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
American Airlines Logo
6:00 am - 11:33 pmPWM-MSO
19h 33m1 stop
American Airlines Logo
7:03 am - 5:35 pmMSO-PWM
8h 32m1 stop
$579American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
American Airlines Logo
6:00 am - 11:33 pmPWM-MSO
19h 33m1 stop
American Airlines Logo
7:03 am - 10:59 pmMSO-PWM
13h 56m2 stops
$584American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
American Airlines Logo
12:41 pm - 11:33 pmPWM-MSO
12h 52m2 stops
American Airlines Logo
7:03 am - 10:59 pmMSO-PWM
13h 56m2 stops
$629American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
United Airlines Logo
7:15 pm - 1:23 pmPWM-MSO
20h 08m2 stops
United Airlines Logo
5:20 pm - 10:01 pmMSO-PWM
26h 41m2 stops
$673United Airlines
Find Deal
Fri, Jul 25 - Fri, Aug 1
American Airlines Logo
1:35 pm - 11:33 pmPWM-MSO
11h 58m2 stops
American Airlines Logo
5:07 am - 10:46 pmMSO-PWM
15h 39m1 stop
$683American Airlines
Find Deal
Fri, Jul 25 - Fri, Aug 1
American Airlines Logo
12:26 pm - 11:33 pmPWM-MSO
13h 07m2 stops
American Airlines Logo
7:03 am - 10:59 pmMSO-PWM
13h 56m2 stops
$701American Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
American Airlines Logo
6:25 pm - 12:57 pmPWM-MSO
20h 32m1 stop
American Airlines Logo
5:07 am - 10:46 pmMSO-PWM
15h 39m1 stop
$767American Airlines
Find Deal
Fri, Jul 25 - Fri, Aug 1
United Airlines Logo
6:10 am - 9:23 pmPWM-MSO
41h 13m2 stops
United Airlines Logo
2:25 pm - 1:18 pmMSO-PWM
20h 53m3 stops
$865United Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21

KAYAK's insights & trends for Portland to Missoula flights

Get data-powered insights and trends into flights from Portland to Missoula 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 Missoula?

The average price of all round-trip flights from Portland to Missoula clicked on KAYAK for each day over the last 12 months.
For Portland to Missoula, Saturday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Missoula back to Portland, the best deals are generally found on Saturday, with Tuesday being the most expensive.

Good to know

Low season

April

High season

July

Cheapest flight

$232
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Portland to Missoula

When to book flights from Portland to Missoula

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

  • What is the cheapest flight from Portland to Missoula?

    In the last 3 days, the lowest price for a flight from Portland to Missoula was $232 for a one-way ticket and $548 for a round-trip.

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

    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 Missoula?

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

  • Which airline alliances offer flights from Portland to Missoula?

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

  • Which is the best airline for flights from Portland to Missoula, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Missoula are United Airlines and American Airlines. With an average price for the route of $721 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $718 and an overall rating of 7.2.

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

    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 Missoula.

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

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

    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 Missoula with an airline and back to Portland with another airline. Booking your flights between Portland and MSO 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 Missoula?

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

See more FAQs

Top airlines flying from Portland to Missoula

 
See real verified KAYAK customer reviews for airlines flying from Portland to Missoula. 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 Missoula? 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.
7.4
United AirlinesOverall score based on 8616 reviews
7.7Boarding
7.0Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

The gate was too far away for the connecting flight

8.0 ExcellentAnonymous, Mar 2025LAX - SFO
Read more United Airlines reviews

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

The trip was very smooth and they provided great customer service

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

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

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