PWM - MSO

$231 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 9/8. 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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Flights Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Missoula

ons., aug. 6 - man., aug. 11
American Airlines Logo
12:04 pm - 11:28 pmPWM-MSO
13h 24m1 stop
American Airlines Logo
7:45 am - 10:45 pmMSO-PWM
13h 00m1 stop
$497American Airlines
Find Deal
ons., aug. 6 - man., aug. 11
American Airlines Logo
11:47 am - 11:28 pmPWM-MSO
13h 41m2 stops
American Airlines Logo
7:45 am - 10:45 pmMSO-PWM
13h 00m1 stop
$502American Airlines
Find Deal
fre., juli 25 - fre., aug. 1
American Airlines Logo
6:15 am - 12:15 pmPWM-MSO
8h 00m1 stop
American Airlines Logo
5:12 am - 8:24 pmMSO-PWM
13h 12m2 stops
$564American Airlines
Find Deal
fre., juli 25 - fre., aug. 1
United Airlines Logo
7:15 pm - 9:15 pmPWM-MSO
28h 00m2 stops
United Airlines Logo
12:40 pm - 11:59 pmMSO-PWM
9h 19m2 stops
$579United Airlines
Find Deal
ons., aug. 6 - man., aug. 11
American Airlines Logo
12:14 pm - 11:28 pmPWM-MSO
13h 14m2 stops
American Airlines Logo
7:45 am - 9:19 pmMSO-PWM
11h 34m2 stops
$588American Airlines
Find Deal
tor., juli 17 - man., juli 21
American Airlines Logo
1:05 pm - 9:48 pmPWM-MSO
10h 43m2 stops
American Airlines Logo
7:03 am - 5:35 pmMSO-PWM
8h 32m1 stop
$630American Airlines
Find Deal
tor., juli 17 - man., juli 21
American Airlines Logo
1:05 pm - 9:48 pmPWM-MSO
10h 43m2 stops
American Airlines Logo
7:03 am - 5:35 pmMSO-PWM
8h 32m1 stop
$634American Airlines
Find Deal
tor., juli 17 - man., juli 21
United Airlines Logo
6:20 pm - 9:56 amPWM-MSO
17h 36m2 stops
United Airlines Logo
6:15 am - 9:24 amMSO-PWM
25h 09m2 stops
$638United Airlines
Find Deal
fre., juli 25 - fre., aug. 1
American Airlines Logo
6:15 am - 12:15 pmPWM-MSO
8h 00m1 stop
American Airlines Logo
5:12 am - 10:52 pmMSO-PWM
15h 40m1 stop
$661American Airlines
Find Deal
tor., juli 17 - man., juli 21
United Airlines Logo
7:15 pm - 4:15 pmPWM-MSO
23h 00m2 stops
United Airlines Logo
4:23 pm - 10:10 amMSO-PWM
15h 47m2 stops
$674United Airlines
Find Deal
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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 seasonApril
High seasonSeptember
Cheapest flight$231
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 $231 for a one-way ticket and $497 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 $714 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 $678 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.

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 8744 reviews
7.3Comfort
7.7Boarding
7.0Entertainment
8.1Crew
6.6Food
Airline reviews

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

6.0 Goodmichael, May 2025HNL - SFO
Read more United Airlines reviews

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Not really their fault, but a 4.5 hour delay is pretty brutal

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Everything was great except British airways lost our luggage that was gate checked all the way through to Italy. No one knows currently where one is and the other one may be in route to Amsterdam to meet us but not sure. If you can Hale’s it would be awesome. The website is not helpful.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Eventless. It was a good flight and good crew. Can’t complaint.

At the beginning of the flight there was some turbulence and the announcement was made that there would be no beverage service. The turbulence only last about 5 minutes then it was smooth sailing. I noticed that first class got their service, but the rest of us did not.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Update.us on flight information in a more timely manner. Don’t say we are boarding on time ten minutes before the boarding time when the aircraft isn’t arriving for another forty minutes.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

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

Information on your arrival and departure airports

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