Cheap flights from Portland to Missoula (PDX - MSO) from $149

This is the cheapest one-way flight price, found on 9/25. Prices may vary by date and flight preferences.
PDX — MSO
Oct 1 — Oct 81

The best prices from Portland to Missoula Johnson-Bell Field are usually found in July or February, booked 30 days in advance, depart on a Monday or Wednesday and return on a Saturday

How to find the cheapest flight from Portland (PDX) to Missoula (MSO)

All the information you need to plan the best PDX to MSO flight in 2023: compare Portland to Missoula flight prices with the expected peak season, weather and rainfall in Missoula.

Popular in

December

Cheapest in

July

Round-trip from

$377

One-way from

$149
High demand for flights, 29% potential price rise
Best time to find cheap flights, 35% potential price drop
From Portland to Missoula Johnson-Bell Field
One-way flight from Portland to Missoula Johnson-Bell Field

PDX - MSO

Price

$377 - $741

MSO

Temperature

24.8 - 68 °F

MSO

Rainfall

0.7 - 2.1 inches

What is the cheapest day to fly round-trip from Portland to Missoula?

Travelers have found that booking a Monday departure is the best way to save up to 57% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 30 days in advance, which can save you up to 105% on flights from Portland to Missoula compared to booking the week you need them. Waiting 30 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $556. For sooner than that we have options available in the next 3 days from $759.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to Missoula. Flights to Missoula from Portland in July are about $388 on average during July, but can be found for as low as $134.

When is the cheapest time to fly from Portland to Missoula (PDX - MSO)?

Unlike at noon, when flights are generally more expensive, you can save up to 50% on flights from Portland to Missoula by exploring options for tickets in the evening.

Cheap Alaska Airlines flights from Portland to Missoula

Take a peek at the cheapest Alaska Airlines flights we've detected traveling from Portland to Missoula. Come back soon if you're not finding the exact deal you're looking for.

Cheap Delta flights from Portland to Missoula

Take a gander at the lowest prices we've found on Delta flights from Portland to Missoula. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Portland to Missoula flights in September & October 2023

The best prices found for PDX to MSO flights for September, October
Check out some of the best flight deals from Portland to Missoula in 2023. Check back in a little while for more flight options.

Portland to Missoula 2023 flight deals

Cheap flights to Missoula from Portland found for this year
Check out some of the best flight deals from Portland to Missoula in 2023. Check back in a little while for more flight options.

Portland to Missoula flights leaving soon

Late deals on return flights to Missoula from Portland, departing today and this week
Have a look at some of the flights available from Portland to Missoula departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Missoula from Portland

The cheapest one-way flights from Portland to Missoula
Users in need of a one-way flight from Portland to Missoula can choose from these deals. For those needing a return trip from Portland, there is a search form available above.

Find flights from Portland to Missoula within your budget

Use the slider to find flights from Portland to Missoula that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$297 - $425

Route

Depart

Return

Price

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Wed 11/1

1 stop4h 36m

Missoula Johnson-Bell Field

Mon 11/6

1 stop4h 50m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Fri 11/10

2 stops8h 13m

Missoula Johnson-Bell Field

Sun 11/12

1 stop4h 50m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Fri 10/20

1 stop17h 38m

Missoula Johnson-Bell Field

Tue 10/24

1 stop6h 06m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Sat 10/21

1 stop7h 23m

Missoula Johnson-Bell Field

Tue 10/24

1 stop6h 06m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Fri 10/20

1 stop17h 38m

Missoula Johnson-Bell Field

Wed 10/25

1 stop6h 06m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Sat 10/21

1 stop16h 24m

Missoula Johnson-Bell Field

Thu 10/26

1 stop6h 55m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Sun 10/22

1 stop4h 00m

Missoula Johnson-Bell Field

Mon 10/23

1 stop3h 15m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Fri 10/6

2 stops24h 15m

Missoula Johnson-Bell Field

Fri 10/13

1 stop11h 12m

PortlandMissoula Johnson-Bell Field

PDX - MSO

PDXMSO

Portland

Tue 10/17

1 stop4h 10m

Missoula Johnson-Bell Field

Mon 10/23

1 stop5h 20m

Flights are sorted by cheapest first

Deals found on 9/26

Reviews of airlines servicing Missoula

See what other customers who have flown with Alaska Airlines, Delta and American Airlines from Portland to Missoula have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,393 reviews

Crew

8.6

Comfort

8.0

Overall

8.1

Boarding

8.3

Food

7.2

Entertainment

7.2

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Crew

8.6

Comfort

8.0

Overall

8.1

Boarding

8.3

Food

7.2

Entertainment

7.2

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Delta
7.9
Good
3,021 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Crew

8.6

Comfort

8.0

Overall

8.1

Boarding

8.3

Food

7.2

Entertainment

7.2

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Crew

8.6

Comfort

8.0

Overall

8.1

Boarding

8.3

Food

7.2

Entertainment

7.2

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Crew

8.6

Comfort

8.0

Overall

8.1

Boarding

8.3

Food

7.2

Entertainment

7.2

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Related info for your journey

Useful info, stats and facts about Portland to Missoula flights.

Can I find flights from Portland to Missoula for under $300 on Cheapflights?

Yes, there are multiple flights from Portland to Missoula for under $300. The cheapest flight booked recently is on Delta for just $297, but on average you can expect to pay $405.

Are there last-minute flights available from Portland to Missoula for under $300?

There are currently 12+ open flights from Portland to Missoula within the next 7 days for less than $300.

What are the cheapest airlines flying from Portland to Missoula round-trip?

According to our current data, Delta ($297), United Airlines ($381), and Alaska Airlines ($421) offers the cheapest pricing from Portland to Missoula. These flights start at 23% lower than the current average price 3 months from now.

What are the most popular airlines that fly from Portland to Missoula?

What does PDX to MSO mean?

PDX stands for Portland Airport, while MSO stands for Missoula Johnson-Bell Field Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Portland to Missoula

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Portland to Missoula

The chart below displays the airlines Cheapflights users traveling from Portland to Missoula choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$158Average$450FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$215Average$336FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$245Average$520FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

What makes Cheapflights the go-to destination for all your flight needs

How does Cheapflights help users find flights from Portland to Missoula?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland to Missoula. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Portland to Missoula?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Missoula from Portland.

Can Cheapflights find flights from Portland to Missoula with no change fees?

Yes! Cheapflights helps users easily find flights from Portland to Missoula with no change fees.

Can Cheapflights notify me if prices for flights from Portland to Missoula become cheaper?

Yes! Start tracking prices for Portland to Missoula flights today and get alerted whenever prices for these flights change. To access this feature, navigate to the search form above to perform a search, which will then prompt you for a valid email address to use the tool.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.