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Missoula

$97+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — MSO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 September, booked 87 days in advance, depart on a Saturday or Sunday and return on a Wednesday

Cheap flight deals from Irvine to Missoula

Keep the following information in mind while searching for Irvine to Missoula flight deals. Data was last updated July 31, 2025.

Round-trip from

$171
(Mytrip)

One-way from

$97
(Mytrip)

Popular in

January

Cheapest in

April

Average price

$471
From Irvine to Missoula Johnson-Bell Field
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One-way flight from Irvine to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 12% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:45 amLAX - MSO
1 stop6h 19mMultiple Airlines
Mon 9/2910:10 pmMSO - LAX
1 stop13h 36mMultiple Airlines
Deal found 7/28$166
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:15 amLAX - MSO
1 stop28h 39mFrontier
Mon 8/1812:40 pmMSO - LAX
1 stop12h 47mFrontier
Deal found 7/29$227
This Delta deal was found by Cheapflights users on 7/29. 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 9/139:50 amLAX - MSO
1 stop6h 17mDelta
Sat 9/205:30 amMSO - LAX
1 stop6h 01mDelta
Deal found 7/29$279
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 8/274:48 pmLAX - MSO
1 stop6h 11mAlaska Airlines
Sat 8/306:40 pmMSO - LAX
2 stops13h 49mAlaska Airlines
Deal found 7/29$286
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 9/86:00 amLAX - MSO
1 stop8h 18mHawaiian Airlines
Sat 9/136:35 amMSO - LAX
1 stop7h 31mHawaiian Airlines
Deal found 7/31$294
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2511:41 amLAX - MSO
Nonstop2h 42mAmerican Airlines
Wed 8/2712:51 pmMSO - LAX
1 stop11h 01mAmerican Airlines
Deal found 7/30$321

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 July 31, 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

Fri 9/26

6:45 am-2:04 pm

1 stop6h 19m

Missoula Johnson-Bell Field

Mon 9/29

10:10 pm-10:46 am

1 stop13h 36m

$166

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 8/14

6:15 am-11:54 am

1 stop28h 39m

Missoula Johnson-Bell Field

Mon 8/18

12:40 pm-12:27 am

1 stop12h 47m

$227

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Sat 9/13

9:50 am-5:07 pm

1 stop6h 17m

Missoula Johnson-Bell Field

Sat 9/20

5:30 am-10:31 am

1 stop6h 01m

$279

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 8/27

4:48 pm-11:59 pm

1 stop6h 11m

Missoula Johnson-Bell Field

Sat 8/30

6:40 pm-7:29 am

2 stops13h 49m

$286

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 9/8

6:00 am-3:18 pm

1 stop8h 18m

Missoula Johnson-Bell Field

Sat 9/13

6:35 am-1:06 pm

1 stop7h 31m

$294

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 8/25

11:41 am-3:23 pm

Nonstop2h 42m

Missoula Johnson-Bell Field

Wed 8/27

12:51 pm-10:52 pm

1 stop11h 01m

$321

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 8/22

6:45 am-8:57 pm

1 stop13h 12m

$97

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 8/7

6:15 am-11:54 am

1 stop28h 39m

$117

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 8/27

6:07 pm-11:59 pm

1 stop4h 52m

$139

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Sat 8/30

5:00 pm-11:10 pm

1 stop5h 10m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 13 results
1
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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 July 25, 2025.

The best time to book flights from Irvine to Missoula is 67 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, October is the cheapest month in which you can book a flight from Irvine to Missoula (average of $365). Flying from Irvine 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 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 July 31, 2025.

When flying from Irvine to Missoula, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Friday afternoons 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 July 31, 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
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 7 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.

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

    $117 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $139 and $140, respectively.

  • What are the cheapest flights from Irvine to Missoula?

    On average you can expect to pay $367 for a flight from Irvine to Missoula. The cheapest flight overall is $300 while the most popular route, (Los Angeles - Missoula Johnson-Bell Field) is currently priced at $166.

  • 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, October is the cheapest month in which you can book a flight from Irvine to Missoula (average of $365). Flying from Irvine 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.

See more FAQs

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Top 7 airlines flying from Irvine to Missoula

Discover the top 7 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$197FlexibilityNo cancel feeOn-time88%
FrontierCheapest$112Average$209FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$120Average$356FlexibilityNo cancel feeOn-time85%
DeltaCheapest$198Average$348FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$429FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$263Average$429FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$294Average$494FlexibilityNo cancel feeOn-time69%

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