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Missoula

$88+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — MSO
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 March, booked 87 days in advance, depart on a Tuesday or Saturday and return on a Friday

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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 5/296:45 pm
LAX
-
MSO
Nonstop2h 45m
United Airlines
Sun 5/317:15 am
MSO
-
LAX
Nonstop3h 15m
United Airlines
Deal found 1/28$229
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:30 am
LAX
-
MSO
1 stop8h 10m
Alaska Airlines
Tue 3/171:39 pm
MSO
-
LAX
1 stop6h 57m
Alaska Airlines
Deal found 1/27$233
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:30 pm
LAX
-
MSO
1 stop5h 56m
United Airlines
Tue 7/287:15 am
MSO
-
LAX
Nonstop3h 15m
United Airlines
Deal found 1/27$235
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:00 am
LAX
-
MSO
1 stop6h 35m
Alaska Airlines
Wed 4/14:23 pm
MSO
-
LAX
1 stop7h 32m
Alaska Airlines
Deal found 1/27$241
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 3/266:00 am
LAX
-
MSO
1 stop5h 31m
Alaska Airlines
Tue 3/317:00 am
MSO
-
LAX
1 stop8h 10m
Alaska Airlines
Deal found 1/28$245
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/202:56 pm
LAX
-
MSO
1 stop6h 01m
United Airlines
Tue 2/245:08 pm
MSO
-
LAX
1 stop6h 47m
United Airlines
Deal found 1/27$249
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 6/67:00 am
LAX
-
MSO
1 stop5h 27m
United Airlines
Sun 6/77:15 am
MSO
-
LAX
Nonstop3h 15m
United Airlines
Deal found 1/28$258
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/115:00 am
LAX
-
MSO
1 stop7h 27m
United Airlines
Sun 6/147:15 am
MSO
-
LAX
Nonstop3h 15m
United Airlines
Deal found 1/27$259
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/202:56 pm
LAX
-
MSO
1 stop6h 01m
United Airlines
Wed 2/255:08 pm
MSO
-
LAX
1 stop6h 47m
United Airlines
Deal found 1/28$268
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 6/42:20 pm
LAX
-
MSO
1 stop6h 06m
United Airlines
Sun 6/77:15 am
MSO
-
LAX
Nonstop3h 15m
United Airlines
Deal found 1/28$273

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(United Airlines)

One-way from

$88
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$553
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. 8% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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 7/22

6:40 pm-10:25 pm

Nonstop2h 45m

Missoula Johnson-Bell Field

Tue 7/28

7:15 am-9:30 am

Nonstop3h 15m

$229

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Tue 7/21

6:40 pm-10:25 pm

Nonstop2h 45m

Missoula Johnson-Bell Field

Wed 7/29

7:15 am-9:30 am

Nonstop3h 15m

$229

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 5/29

6:45 pm-10:30 pm

Nonstop2h 45m

Missoula Johnson-Bell Field

Sun 5/31

7:15 am-9:30 am

Nonstop3h 15m

$229

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 3/26

6:00 am-12:31 pm

1 stop5h 31m

Missoula Johnson-Bell Field

Tue 3/31

1:11 pm-5:06 pm

1 stop4h 55m

$233

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 6/8

5:00 am-1:27 pm

1 stop7h 27m

Missoula Johnson-Bell Field

Sat 6/13

7:15 am-9:30 am

Nonstop3h 15m

$239

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Tue 7/21

10:00 am-5:56 pm

1 stop6h 56m

Missoula Johnson-Bell Field

Wed 7/29

6:36 pm-11:59 pm

1 stop6h 23m

$249

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 3/13

5:00 pm-11:59 pm

1 stop5h 59m

Missoula Johnson-Bell Field

Fri 3/20

7:00 am-2:10 pm

1 stop8h 10m

$249

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 5/29

7:00 am-2:43 pm

1 stop6h 43m

Missoula Johnson-Bell Field

Sun 5/31

3:39 pm-9:35 pm

1 stop6h 56m

$249

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Sat 6/20

6:45 pm-10:30 pm

Nonstop2h 45m

Missoula Johnson-Bell Field

Tue 6/30

7:15 am-9:30 am

Nonstop3h 15m

$249

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 4/3

8:00 am-3:35 pm

1 stop6h 35m

Missoula Johnson-Bell Field

Mon 4/13

4:23 pm-10:55 pm

1 stop7h 32m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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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 January 23, 2026.

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 October is currently the most expensive (average of $262). 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.

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 January 29, 2026.
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
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,830 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 $229, United Airlines can have you in Missoula from Irvine in 2h 45m. 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 $280 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 $229.

  • 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 October is currently the most expensive (average of $262). 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.

See more FAQs

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$79Average$197FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$120Average$360FlexibilityNo cancel feeOn-time85%
DeltaCheapest$142Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$392FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$242Average$403FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$246Average$414FlexibilityNo cancel feeOn-time71%

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