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Cheap Flights from Portland to Missoula

Compare Portland to Missoula flight deals

Find the cheapest month or even day of the year to fly to Missoula

Book the best Missoula fare with no extra fees

Flight deals from Portland to Missoula

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Missoula Airport? If you want to travel next month, return fares start from ج.م.‏ 19,044. Find the lowest prices on one-way and return tickets right here.
Missoula.ج.م.‏ 6,627 per passenger.Departing Wed, 19 Aug.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 19 Aug, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 6,627, select.
Missoula.ج.م.‏ 6,665 per passenger.Departing Fri, 9 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 9 Oct, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 6,665, select.
Missoula.ج.م.‏ 6,837 per passenger.Departing Sun, 20 Sep.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sun, 20 Sep, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 6,837, select.
Missoula.ج.م.‏ 10,033 per passenger.Departing Fri, 6 Nov.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 6 Nov, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 10,033, select.
Missoula.ج.م.‏ 10,033 per passenger.Departing Sat, 30 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sat, 30 Jan, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 10,033, select.
Missoula.ج.م.‏ 10,034 per passenger.Departing Fri, 9 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Fri, 9 Oct, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 10,034, select.
Missoula.ج.م.‏ 10,566 per passenger.Departing Mon, 29 Jun.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Mon, 29 Jun, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 10,566, select.
Missoula.ج.م.‏ 13,467 per passenger.Departing Sun, 20 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Sun, 20 Sep, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 13,467, select.
Missoula.ج.م.‏ 13,929 per passenger.Departing Fri, 17 Jul.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 17 Jul, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 13,929, select.
Missoula.ج.م.‏ 16,765 per passenger.Departing Fri, 10 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Fri, 10 Jul, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 16,765, select.
Missoula.ج.م.‏ 16,781 per passenger.Departing Mon, 29 Jun.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Mon, 29 Jun, arriving in Missoula.Price includes taxes and charges.From ج.م.‏ 16,781, select.

Find the cheapest month to fly from Portland to Missoula

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Missoula flights are currently cheapest in August.
Jun
from ج.م.‏ 10,566
Jul
from ج.م.‏ 13,929
Aug
from ج.م.‏ 6,627
Sep
from ج.م.‏ 6,837
Oct
from ج.م.‏ 6,665
Nov
from ج.م.‏ 10,033
Dec
Find prices
Jan
from ج.م.‏ 10,033
Feb
Find prices
Mar
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Apr
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May
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Direct flights from Portland to Missoula

Portland to Missoula: Alternative routes

Compare routes from Portland to Missoula below. You may find an airport to fly into that's cheaper, faster, or easier than Missoula.

Missoula

8km from central Missoula
ClosestCheapest
from ج.م.‏ 6,633
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Portland to Missoula: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 6,633
Cheapest month to flyAugust
Average flight time1 hr, 32 mins
Most popular airlineAlaska Airlines
Average flights per week17

Finding cheap flights from Portland to Missoula: Frequently asked questions

The best price we found for a return flight from Portland to Missoula is ج.م.‏ 13,211. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 32 minutes is the average flight time from Portland to Missoula.
Alaska Airlines, Horizon Air and SkyWest Airlines fly direct from Portland to Missoula.
As of June 2026, there are 17 flights per week flying from Portland to Missoula.
The cheapest month to fly from Portland to Missoula is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Missoula Airport on Wednesday, 16 September 2026.
Yes – the average flight time is 1 hour and 32 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Missoula but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Missoula is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Missoula.

Flying from Portland International Airport (PDX) to Missoula International Airport (MSO): what you need to know

  • Around 1 hour 25 minutes is how long you can expect to be in the air on a direct flight from Portland International Airport to Missoula International Airport.

  • Take your pick of six weekly Portland International Airport to Missoula International Airport flights. The 12:51 departure with Alaska Airlines is the earliest flight available. Alaska Airlines operates the latest service of the day at 14:55.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport with enough time to catch your PDX to MSO flight.

  • You'll likely experience longer lines in popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a smart move.

  • Getting to Missoula (and then exploring more of United States!) is a snap with Alaska Airlines. This popular carrier offers direct flights from Portland International Airport to Missoula International Airport.

  • Alaska Airlines is the top choice for travellers on this route.

  • Alaska Airlines is the most punctual carrier that operates PDX to MSO flights. A reliable 96.3% of its departures on this route arrive as scheduled.

  • If you want to add a stop to your trip, just uncheck 'Direct flights only' when searching for your ticket from Portland International Airport to Missoula International Airport. These are the most popular stopovers between PDX and MSO:

    • Salt Lake City International Airport

    • Denver International Airport

    • Los Angeles International Airport

How to find the cheapest flights from Portland International Airport (PDX) to Missoula International Airport (MSO)

  • Right now, ج.م.‏ 6,627 is the lowest price we've found for a one-way Portland International Airport to Missoula International Airport flight. The best price for a return ticket is ج.م.‏ 13,211. Keep in mind that fares may change due to availability when booking.

  • To get cheap tickets from PDX to MSO, reserve your journey eight months ahead of your departure date.

  • Organise your trip for July. That's the cheapest month for flights from Portland International Airport to Missoula International Airport. If your travel dates are flexible, use the 'Whole month' tool to see the lowest price across every month.

  • Picking up cheap flights from PDX to MSO is easy with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as there's a better deal.

  • Select your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Portland International Airport to Missoula International Airport.

Handy information about Portland International Airport (PDX)

  • PDX's address is 7000 NE Airport Way.

  • 83.65% of flights leaving Portland International Airport touch down at their destination as planned. With its reliable on-time performance, delays are unlikely when jetting out of PDX.

  • Portland International Airport is around 19 kilometres from central Portland. If you're driving, catching a cab or ride-sharing from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.

  • Taking public transport? Expect a trip time of around 45 minutes.

  • Looking for a convenient hotel close to PDX? If you're catching an early flight from Portland International Airport to Missoula International Airport, these stays will have you moments from your departure gate:

Arriving at Missoula International Airport (MSO)

  • If you're landing on a late Portland International Airport to Missoula International Airport flight, few things beat the convenience of being close to the terminal. Grab your bags from the carousel and then be tucked up in bed not long after at one of these hotels near MSO:

  • Fast-track your adventure by picking up a Missoula International Airport rental car. Grab your wheels from Budget, Dollar or Hertz and explore beyond Missoula's main sights.

  • Book your ride from Missoula International Airport several weeks before your departure to get the best deal. If you're travelling during a busy period, you may want to book even earlier.

Getting from Missoula International Airport (MSO) to central Missoula

  • MSO is located at 5225 Highway 10 West.

  • Missoula International Airport to the centre of Missoula has a drive time of about 10 minutes. It's approximately 11 kilometres away.

  • Getting to the centre by public transport takes about 35 minutes.

When to fly to Missoula International Airport (MSO)

  • It's time to choose your trip dates for your flight from Portland International Airport to Missoula International Airport. July is the busiest month to head to Missoula. If you prefer a quieter vibe, go in February.

  • The warmest month in Missoula is July, with temperatures ranging between 8ºC and 33ºC. Lock in your flights from Portland International Airport to Missoula International Airport in this month if you enjoy this type of weather.

  • Look for cheap tickets from PDX to MSO in December if you like cooler conditions. Temperatures are at their lowest around then, ranging between -15ºC and 3ºC on average.

Explore more of United States

  • Spokane is just one of the many places in United States waiting to be explored once you've seen Missoula. Around 274 kilometres away to the west, popular attractions include Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • If there's time to check out another side of United States, consider Boise, roughly 402 kilometres south-west of Missoula. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are key highlights.

Plan the rest of your trip from Portland to Missoula

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.