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Cheap flights from Portland to Missoula from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Missoula departing on 3/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
10:30 am - 12:59 pm
PDX
-
MSO
1h 29mnonstop
Alaska Airlines Logo
1:11 pm - 1:50 pm
MSO
-
PDX
1h 39mnonstop
$177Alaska Airlines
Tue, Mar 17 - Tue, Mar 24
Alaska Airlines Logo
10:30 am - 12:59 pm
PDX
-
MSO
1h 29mnonstop
Alaska Airlines Logo
7:00 am - 9:25 am
MSO
-
PDX
3h 25m
1 stop
$207Alaska Airlines
Tue, Mar 17 - Tue, Mar 24
Delta Logo
5:45 am - 12:16 pm
PDX
-
MSO
5h 31m
1 stop
Delta Logo
6:04 pm - 11:54 pm
MSO
-
PDX
6h 50m
1 stop
$217Delta
Tue, Mar 10 - Sun, Mar 15
Alaska Airlines Logo
10:38 am - 1:13 pm
PDX
-
MSO
1h 35mnonstop
Alaska Airlines Logo
1:11 pm - 1:50 pm
MSO
-
PDX
1h 39mnonstop
$218Alaska Airlines
Mon, Apr 6 - Mon, Apr 13
Delta Logo
1:55 pm - 12:24 am
PDX
-
MSO
9h 29m
2 stops
Delta Logo
6:04 pm - 11:54 pm
MSO
-
PDX
6h 50m
1 stop
$222Delta
Tue, Mar 10 - Sun, Mar 15
Delta Logo
5:45 am - 12:16 pm
PDX
-
MSO
5h 31m
1 stop
Delta Logo
6:04 pm - 11:54 pm
MSO
-
PDX
6h 50m
1 stop
$227Delta
Thu, Mar 12 - Mon, Mar 16
Delta Logo
7:05 am - 5:23 pm
PDX
-
MSO
9h 18m
2 stops
Delta Logo
6:04 pm - 11:54 pm
MSO
-
PDX
6h 50m
1 stop
$232Delta
Thu, Mar 12 - Mon, Mar 16
Alaska Airlines Logo
9:00 am - 3:35 pm
PDX
-
MSO
5h 35m
1 stop
Alaska Airlines Logo
1:11 pm - 1:50 pm
MSO
-
PDX
1h 39mnonstop
$238Alaska Airlines
Wed, Apr 1 - Mon, Apr 6
Alaska Airlines Logo
10:38 am - 1:13 pm
PDX
-
MSO
1h 35mnonstop
Alaska Airlines Logo
1:11 pm - 1:50 pm
MSO
-
PDX
1h 39mnonstop
$239Alaska Airlines
Wed, Apr 1 - Mon, Apr 6
Alaska Airlines Logo
9:00 am - 3:35 pm
PDX
-
MSO
5h 35m
1 stop
Alaska Airlines Logo
4:23 pm - 9:38 pm
MSO
-
PDX
6h 15m
1 stop
$248Alaska Airlines
Wed, Apr 1 - Mon, Apr 6

United Airlines flights from Portland to Missoula

Our best United Airlines deals on Portland to Missoula flight tickets
United Airlines
Apr 23
PDX5:00 amPortland
7h 32m
1 stop
MSO1:32 pmMissoula Johnson-Bell Field
Apr 26
MSO5:15 pmMissoula Johnson-Bell Field
6h 39m
1 stop
PDX10:54 pmPortland
$277
United Airlines
Feb 25
PDX1:18 pmPortland
7h 39m
1 stop
MSO9:57 pmMissoula Johnson-Bell Field
Feb 28
MSO6:15 amMissoula Johnson-Bell Field
8h 29m
1 stop
PDX1:44 pmPortland
$478

Delta flights from Portland to Missoula

Our best Delta deals on Portland to Missoula flight tickets
Delta
Mar 10
PDX7:15 pmPortland
4h 09m
1 stop
MSO12:24 amMissoula Johnson-Bell Field
Mar 15
MSO6:04 pmMissoula Johnson-Bell Field
6h 50m
1 stop
PDX11:54 pmPortland
$217
Delta
Mar 10
PDX1:55 pmPortland
9h 29m
2 stops
MSO12:24 amMissoula Johnson-Bell Field
Mar 15
MSO6:04 pmMissoula Johnson-Bell Field
6h 50m
1 stop
PDX11:54 pmPortland
$222
Delta
Mar 12
PDX5:45 amPortland
5h 31m
1 stop
MSO12:16 pmMissoula Johnson-Bell Field
Mar 16
MSO6:04 pmMissoula Johnson-Bell Field
6h 50m
1 stop
PDX11:54 pmPortland
$227

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Missoula that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from Portland to Missoula that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Tue 3/17

10:30 am-12:59 pm

Nonstop1h 29m

Missoula Johnson-Bell Field

Tue 3/24

1:11 pm-1:50 pm

Nonstop1h 39m

$177

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Tue 3/17

10:30 am-12:59 pm

Nonstop1h 29m

Missoula Johnson-Bell Field

Tue 3/24

7:00 am-9:25 am

1 stop3h 25m

$207

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Tue 3/10

5:45 am-12:16 pm

1 stop5h 31m

Missoula Johnson-Bell Field

Sun 3/15

6:04 pm-11:54 pm

1 stop6h 50m

$217

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Mon 4/6

10:38 am-1:13 pm

Nonstop1h 35m

Missoula Johnson-Bell Field

Mon 4/13

1:11 pm-1:50 pm

Nonstop1h 39m

$218

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Tue 3/10

1:55 pm-12:24 am

2 stops9h 29m

Missoula Johnson-Bell Field

Sun 3/15

6:04 pm-11:54 pm

1 stop6h 50m

$222

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Thu 3/12

5:45 am-12:16 pm

1 stop5h 31m

Missoula Johnson-Bell Field

Mon 3/16

6:04 pm-11:54 pm

1 stop6h 50m

$227

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Thu 3/12

7:05 am-5:23 pm

2 stops9h 18m

Missoula Johnson-Bell Field

Mon 3/16

6:04 pm-11:54 pm

1 stop6h 50m

$232

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Wed 4/1

9:00 am-3:35 pm

1 stop5h 35m

Missoula Johnson-Bell Field

Mon 4/6

1:11 pm-1:50 pm

Nonstop1h 39m

$238

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Wed 4/1

10:38 am-1:13 pm

Nonstop1h 35m

Missoula Johnson-Bell Field

Mon 4/6

1:11 pm-1:50 pm

Nonstop1h 39m

$239

PortlandMissoula

PDX - MSO

PDXMSO

Portland

Wed 4/1

9:00 am-3:35 pm

1 stop5h 35m

Missoula Johnson-Bell Field

Mon 4/6

4:23 pm-9:38 pm

1 stop6h 15m

$248

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missoula from

How to get the cheapest flight ticket from Portland to Missoula

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missoula?

The month of August is, on average, the cheapest month to fly to Missoula from Portland, with most prices found around $228. If you are unable to visit Missoula during the month of August, then departing from Portland during the month September is also very affordable. Most momondo users find prices during this month for around $237.

What is the cheapest day to depart on your flight to Missoula?

On average, the least expensive day to fly to Missoula from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $251. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $428.

What is the cheapest time of day to depart on your flight to Missoula?

The cheapest time of day to fly to Missoula is in the evening when flights can be purchased for as low as $274. Flights at noon are often more expensive with an average ticket price of $567.

What is the cheapest Portland to Missoula Johnson-Bell Field flight route?

Fly from Portland to Missoula Johnson-Bell Field for the best Portland - Missoula Johnson-Bell Field flight prices

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

You are more likely to see cheaper flights to Missoula from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Missoula for around $319 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missoula from Portland for as low as $206 on momondo.

What cabin class options are available on Portland to Missoula Johnson-Bell Field flights?

There are 2 cabin classes available to choose from on Portland to Missoula Johnson-Bell Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to Missoula flight prices changed over time?

As of February 2026, prices for Portland to Missoula flights are approximately 64% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Missoula

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Missoula according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Missoula (PDX to MSO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Missoula

Best Price Found

$88

Fastest flight time

1h 26m

Direct flights

Every day

Airports in Missoula

1 airport
The best one-way flight to Missoula from Portland in the past 72 hours is $88. The best round-trip flight deal from Portland to Missoula found on momondo in the last 72 hours is $287.
The fastest flight from Portland to Missoula takes 1h 26m
Direct flights go from Portland to Missoula every day.
There is 1 airport in Missoula. From Portland there are direct flights to Missoula Johnson-Bell Field (MSO).
Search flight deals

  • How far is Portland to Missoula Johnson-Bell Field by plane?

    Missoula Johnson-Bell Field is 425.0 mi away from Portland. By plane, this route typically takes 1h 26m.

  • When did momondo last update prices for flights from Portland Airport to Missoula Johnson-Bell Field Airport?

    Prices for flights from Portland Airport to Missoula Johnson-Bell Field Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Missoula Johnson-Bell Field Airport?

  • How old do you have to be to fly from Portland Airport to Missoula Johnson-Bell Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Missoula Johnson-Bell Field Airport.

  • What documentation or ID do you need to fly to Missoula Johnson-Bell Field Airport?

    The travel and health documents required for your trip to Missoula Johnson-Bell Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missoula Johnson-Bell Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Portland to Missoula?

  • What is the most popular airline from Portland to Missoula?

Best airlines flying from Portland to Missoula

Compare and see reviews for airlines that fly from Portland to Missoula with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $157Free CancellationRating
7.8
2,834 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $167Free CancellationRating
8.0
11,895 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Portland to Missoula

    Alaska Airlines flies from Portland to Missoula around 7 times per week, with 11,895 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Portland to Missoula in the last 72 hours was $167 (round-trip), much lower than the average airfare cost of $307 for Alaska Airlines flights on this route.

  • Hawaiian Airlines Flights From Portland to Missoula

    The best Hawaiian Airlines deal for Portland to Missoula flight tickets found on momondo in the last 72 hours was $157, round-trip. It should be noted that an average Hawaiian Airlines flight deal for this route in this time was higher, at $267 round-trip. Hawaiian Airlines operates 7 flights out of Portland into Missoula in an average week, so prices vary by time and availability. 2,834 Hawaiian Airlines reviews by users on momondo have scored the airline at 7.8/10.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Missoula?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Missoula for you.

Can I find flights from Portland to Missoula with flexible booking policies on momondo?

Yes. All flights to Missoula from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Missoula?

momondo provides multiple filters to help you find the best flight to Missoula from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Missoula right now. Can momondo alert me if prices change?

Price alerts on flights to Missoula from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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