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$99+ Cheap flights from Portland to Missoula (PDX - MSO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MSO
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Missoula Johnson-Bell Field are usually found in January or February, booked 73 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 29, 2025.

Round-trip from

$157
(Hawaiian Airlines)

One-way from

$99
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$380

Good round-trip deal

$218 or less

Good one-way deal

$139 or less
From Portland to Missoula Johnson-Bell Field
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One-way flight from Portland to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 12% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Portland to Missoula Johnson-Bell Field.
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Price to beat on a one-way flight from Portland to Missoula Johnson-Bell Field.
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Find flight deals from Portland to Missoula

Cheapest flights from Portland to Missoula
Explore the most affordable flight options available from Portland to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1011:04 amPDX - MSO
Nonstop1h 30mHawaiian Airlines
sáb. 9/135:45 amMSO - PDX
Nonstop1h 32mHawaiian Airlines
Deal found 7/26$157
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/319:30 pmPDX - MSO
Nonstop1h 29mAlaska Airlines
sáb. 9/135:45 amMSO - PDX
Nonstop1h 32mAlaska Airlines
Deal found 7/28$177
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/197:05 pmPDX - MSO
1 stop4h 10mDelta
mar. 8/265:30 amMSO - PDX
1 stop4h 21mDelta
Deal found 7/27$195
This FlightHub deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/146:35 amPDX - MSO
1 stop28h 19mFrontier
lun. 8/1812:40 pmMSO - PDX
1 stop12h 36mFrontier
Deal found 7/28$205
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/15:00 amPDX - MSO
1 stop7h 34mUnited Airlines
mié. 9/102:39 pmMSO - PDX
1 stop7h 22mUnited Airlines
Deal found 7/28$277

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated julio 29, 2025.
Use the filters below to find and compare flights from Portland to Missoula that are best for you.

Fly from

Portland

Fly to

Missoula

Route

Depart

Return

Price

PortlandMissoula

PDX - MSO

PDXMSO

Portland

mié. 9/10

11:04 am-1:34 pm

Nonstop1h 30m

Missoula Johnson-Bell Field

sáb. 9/13

5:45 am-6:17 am

Nonstop1h 32m

$157

PortlandMissoula

PDX - MSO

PDXMSO

Portland

dom. 8/31

9:30 pm-11:59 pm

Nonstop1h 29m

Missoula Johnson-Bell Field

sáb. 9/13

5:45 am-6:17 am

Nonstop1h 32m

$177

PortlandMissoula

PDX - MSO

PDXMSO

Portland

mar. 8/19

7:05 pm-12:15 am

1 stop4h 10m

Missoula Johnson-Bell Field

mar. 8/26

5:30 am-8:51 am

1 stop4h 21m

$195

PortlandMissoula

PDX - MSO

PDXMSO

Portland

jue. 8/14

6:35 am-11:54 am

1 stop28h 19m

Missoula Johnson-Bell Field

lun. 8/18

12:40 pm-12:16 am

1 stop12h 36m

$205

PortlandMissoula

PDX - MSO

PDXMSO

Portland

lun. 9/1

5:00 am-1:34 pm

1 stop7h 34m

Missoula Johnson-Bell Field

sáb. 9/13

4:17 pm-8:37 pm

1 stop5h 20m

$277

PortlandMissoula

PDX - MSO

PDXMSO

Portland

mié. 8/20

9:30 pm-11:59 pm

Nonstop1h 29m

$99

PortlandMissoula

PDX - MSO

PDXMSO

Portland

jue. 8/7

5:50 pm-11:54 am

1 stop17h 04m

$107

PortlandMissoula

PDX - MSO

PDXMSO

Portland

vie. 8/15

9:30 pm-11:54 pm

Nonstop1h 24m

$169

PortlandMissoula

PDX - MSO

PDXMSO

Portland

vie. 8/22

3:18 pm-12:15 am

2 stops7h 57m

$185

PortlandMissoula

PDX - MSO

PDXMSO

Portland

jue. 8/28

6:30 pm-9:37 pm

2 stops26h 07m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 11 results
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Best time to book a flight from Portland to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Missoula. Price data was last updated on July 25, 2025.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Missoula. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland to Missoula?

Currently, October is the cheapest month in which you can book a flight from Portland to Missoula (average of $365). Flying from Portland to Missoula in March is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to MSO?

Find hourly flight availability from Portland to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 29, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 34% on flights from Portland to Missoula by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Missoula. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Portland to Missoula flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Missoula

Explore weekly flight availability from Portland to Missoula. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 29, 2025.

The most flights from PDX to MSO are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Missoula

Get insights into the airlines that provide service to Missoula. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missoula. Reviews last updated julio 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Portland to Missoula by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.9
Fair
3,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Portland to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Portland to Missoula?

    Missoula Johnson-Bell Field is the airport most travelers will use when flying to Missoula from Portland. Booking flights from Portland (PDX) to Johnson-Bell Field (MSO) should be relatively easy as there are 4 daily flights to Missoula from 3 different airlines. 1h 20m is how long a flight from Portland to Missoula Johnson-Bell Field will take if you book a nonstop flight.

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

    According to our current data, Hawaiian Airlines ($157), Alaska Airlines ($177), and Delta ($195) offers the cheapest pricing from Portland to Missoula. These flights start at 51% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Portland to Missoula one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $99. Users have also found prices from $107 and $169 on Frontier and Hawaiian Airlines, respectively.

  • What are the most reliable airlines from Portland to Missoula?

    Consider Alaska Airlines (91%), Horizon Air (91%) or Hawaiian Airlines (91%) when booking your flight. These represent the most reliable airlines when flying from Portland to Missoula.

  • What are the cheapest flights from Portland to Missoula?

    On average you can expect to pay $273 for a flight from Portland to Missoula. The cheapest flight overall is $118 while the most popular route, (Portland - Missoula Johnson-Bell Field) is currently priced at $157.

  • Can I find deals for flights from Portland to Missoula that include hotel bookings?

    Yes. In addition to deals on Portland to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Missoula?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Missoula.

  • Can I find deals for business class flights from Portland to Missoula?

    Yes. Cheapflights offers flight deals from Portland to Missoula by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Missoula?

    Currently, October is the cheapest month in which you can book a flight from Portland to Missoula (average of $365). Flying from Portland to Missoula in March is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Portland to Missoula

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Top 3 airlines flying from Portland to Missoula

Discover the top 3 airlines that operate flights from Portland to Missoula. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$183Average$366FlexibilityNo cancel feeOn-time75%
DeltaCheapest$196Average$226FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$197Average$268FlexibilityNo cancel feeOn-time85%

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