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Missoula

$85+ Cheap flights from Irvine, CA to Missoula (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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — MSO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Missoula Johnson-Bell Field are usually found in April or August, booked 87 days in advance, depart on a Saturday or Sunday and return on a Wednesday

Cheap flight deals from Irvine to Missoula

Cheapest flights from Irvine to Missoula
Explore the most affordable flight options available from Irvine to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:22 pmLAX - MSO
1 stop27h 50mMultiple Airlines
Mon 12/294:20 pmMSO - LAX
1 stop15h 58mMultiple Airlines
Deal found 12/16$427
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/183:20 pmLAX - MSO
1 stop7h 22mAlaska Airlines
Thu 12/2512:29 pmMSO - LAX
1 stop5h 55mAlaska Airlines
Deal found 12/16$429
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/316:24 pmLAX - MSO
1 stop4h 45mAlaska Airlines
Sun 1/45:20 amMSO - LAX
1 stop5h 19mAlaska Airlines
Deal found 12/16$473
This Delta deal was found by Cheapflights users on 12/16. 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.
Tue 12/305:30 amLAX - MSO
1 stop5h 24mDelta
Mon 1/55:00 amMSO - LAX
2 stops9h 05mDelta
Deal found 12/16$480
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:22 pmLAX - MSO
1 stop27h 50mMultiple Airlines
Wed 12/3110:49 amMSO - LAX
1 stop26h 15mMultiple Airlines
Deal found 12/18$495
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/307:24 pmLAX - MSO
1 stop16h 30mAlaska Airlines
Mon 1/56:00 amMSO - LAX
1 stop5h 52mAlaska Airlines
Deal found 12/16$500
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/172:30 pmLAX - MSO
1 stop5h 48mUnited Airlines
Sat 12/205:15 pmMSO - LAX
1 stop6h 40mUnited Airlines
Deal found 12/17$513
This Delta deal was found by Cheapflights users on 12/16. 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.
Thu 12/1811:40 amLAX - MSO
2 stops11h 56mDelta
Thu 12/255:20 amMSO - LAX
1 stop6h 17mDelta
Deal found 12/16$540
This Delta deal was found by Cheapflights users on 12/16. 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.
Sat 12/275:30 amLAX - MSO
1 stop5h 24mDelta
Mon 1/55:00 amMSO - LAX
2 stops9h 05mDelta
Deal found 12/16$543

Find flight deals from Irvine to Missoula

Keep the following information in mind while searching for Irvine to Missoula flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$282
(Alaska Airlines)

One-way from

$85
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$380
Provider with most accurate pricing for Los Angeles-Missoula Johnson-Bell Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Missoula Johnson-Bell Field flights.
Search Deals
From Irvine to Missoula Johnson-Bell Field
Search Deals
One-way flight from Irvine to Missoula Johnson-Bell Field
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 December 18, 2025.
Use the filters below to find and compare flights from Irvine to Missoula that are best for you.

Fly from

Irvine

Fly to

Missoula

Route

Depart

Return

Price

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 1/14

2:15 pm-1:23 pm

1 stop22h 08m

Missoula Johnson-Bell Field

Sun 1/18

6:23 am-10:55 am

1 stop5h 32m

$292

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 1/16

2:56 pm-1:23 pm

2 stops21h 27m

Missoula Johnson-Bell Field

Mon 1/19

6:23 am-10:55 am

1 stop5h 32m

$302

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 1/19

11:59 pm-12:50 pm

1 stop11h 51m

Missoula Johnson-Bell Field

Fri 1/23

7:00 am-4:01 pm

1 stop10h 01m

$308

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 3/26

3:55 pm-11:55 pm

1 stop7h 00m

Missoula Johnson-Bell Field

Tue 3/31

6:35 am-12:33 pm

1 stop6h 58m

$310

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 1/16

9:19 pm-1:23 pm

2 stops15h 04m

Missoula Johnson-Bell Field

Sun 1/18

4:20 pm-8:36 pm

1 stop5h 16m

$311

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 3/11

10:50 am-12:59 pm

1 stop25h 09m

Missoula Johnson-Bell Field

Sun 3/15

1:01 pm-4:59 pm

1 stop4h 58m

$313

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 1/15

2:56 pm-11:55 pm

1 stop7h 59m

Missoula Johnson-Bell Field

Sun 1/18

6:23 am-5:28 pm

2 stops12h 05m

$328

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 1/19

9:19 pm-12:23 pm

2 stops14h 04m

Missoula Johnson-Bell Field

Fri 1/23

4:20 pm-9:36 pm

1 stop6h 16m

$331

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 1/15

9:46 pm-10:03 am

1 stop11h 17m

$87

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 2/16

9:12 am-3:15 pm

1 stop5h 03m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 17 results
1
2

Best time to book a flight from Irvine to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Irvine 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 Irvine to Missoula

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Missoula. Price data was last updated on December 12, 2025.

The best time to book flights from Irvine to Missoula is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Irvine to Missoula (average of $90). Flying from Irvine to Missoula in September is currently the most expensive (average of $289). 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 IR9 to MSO?

Find hourly flight availability from Irvine 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 December 18, 2025.

When flying from Irvine to Missoula, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 24% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Irvine to Missoula. Price data was last updated on December 16, 2024.

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

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 December 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Irvine to Missoula to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,479 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,094 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,054 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

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

  • What airport do you fly into for flights to Missoula from Irvine?

    If you book a flight to Missoula from Irvine, you will be flying to Johnson-Bell Field, which is the city’s only airport. Missoula Johnson-Bell Field (MSO) is located 5.5 mi from the center of Missoula. There are 0 flights from Irvine to Johnson-Bell Field per day from 6 different airlines.

  • How popular is this Irvine to Missoula flight route?

    Within the past month, 3 users have taken a look at flights from Irvine to Missoula Johnson-Bell Field.

  • How long is the flight from Irvine to Missoula?

    For as low as $308, Alaska Airlines can have you in Missoula from Irvine in 11h 51m. Airlines will cover a distance of 924 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $124 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $128 and $139, respectively.

  • What are the cheapest flights from Irvine to Missoula?

    On average you can expect to pay $270 for a flight from Irvine to Missoula. The cheapest flight overall is $220 while the most popular route, (Los Angeles - Missoula Johnson-Bell Field) is currently priced at $300.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irvine 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 Irvine to Missoula?

    Currently, May is the cheapest month in which you can book a flight from Irvine to Missoula (average of $90). Flying from Irvine to Missoula in September is currently the most expensive (average of $289). 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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Top 6 airlines flying from Irvine to Missoula

Discover the top 6 airlines that operate flights from Irvine 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$197FlexibilityNo cancel feeOn-time88%
DeltaCheapest$142Average$380FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$145Average$420FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$236Average$413FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$246Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$407FlexibilityNo cancel feeOn-time69%

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