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$102+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — MSO
May 18 — May 251
Sun 5/18
Sun 5/25
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 47 days in advance, depart on a Monday or Wednesday 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 May 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Priceline
3 stars

Round-trip from

$173
(Mytrip)

One-way from

$102
(Trip.com)

Popular in

January

Cheapest in

April

Average price

$478
Provider with most accurate pricing for Los Angeles-Missoula Johnson-Bell Field flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Missoula Johnson-Bell Field flights.
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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. 11% potential increase in price ($55 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 May 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 May 13, 2025.

This Mytrip deal was found by Cheapflights users on 5/12. 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.
Mon 6/96:00 amLAX - MSO
1 stop5h 56mMultiple Airlines
Mon 6/1610:06 pmMSO - LAX
1 stop24h 17mMultiple Airlines
Deal found 5/12$187
This American Airlines deal was found by Cheapflights users on 5/11. 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 6/911:31 amLAX - MSO
Nonstop2h 39mAmerican Airlines
Fri 6/133:40 pmMSO - LAX
Nonstop2h 53mAmerican Airlines
Deal found 5/11$191
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 6/96:20 pmLAX - MSO
1 stop4h 46mAlaska Airlines
Mon 6/164:13 pmMSO - LAX
1 stop5h 32mAlaska Airlines
Deal found 5/11$210
This Hawaiian Airlines deal was found by Cheapflights users on 5/11. 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.
Fri 6/207:00 amLAX - MSO
1 stop7h 17mHawaiian Airlines
Mon 6/236:36 pmMSO - LAX
1 stop6h 23mHawaiian Airlines
Deal found 5/11$250
This Delta deal was found by Cheapflights users on 5/12. 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.
Wed 10/81:35 pmLAX - MSO
1 stop9h 17mDelta
Sat 10/116:10 pmMSO - LAX
1 stop4h 45mDelta
Deal found 5/12$263
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 7/145:05 amLAX - MSO
1 stop7h 18mUnited Airlines
Mon 7/145:20 pmMSO - LAX
1 stop6h 10mUnited Airlines
Deal found 5/11$335
This Booking.com deal was found by Cheapflights users on 5/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/310:55 amLAX - MSO
1 stop24h 00mFrontier
Mon 7/712:40 pmMSO - LAX
1 stop12h 47mFrontier
Deal found 5/12$451

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 May 13, 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

Mon 6/9

6:00 am-12:56 pm

1 stop5h 56m

Missoula Johnson-Bell Field

Mon 6/16

10:06 pm-9:23 pm

1 stop24h 17m

$187

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 6/9

11:31 am-3:10 pm

Nonstop2h 39m

Missoula Johnson-Bell Field

Fri 6/13

3:40 pm-5:33 pm

Nonstop2h 53m

$191

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 6/9

6:20 pm-12:06 am

1 stop4h 46m

Missoula Johnson-Bell Field

Mon 6/16

4:13 pm-8:45 pm

1 stop5h 32m

$210

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Fri 6/20

7:00 am-3:17 pm

1 stop7h 17m

Missoula Johnson-Bell Field

Mon 6/23

6:36 pm-11:59 pm

1 stop6h 23m

$250

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 7/10

2:10 pm-12:24 am

2 stops9h 14m

Missoula Johnson-Bell Field

Mon 7/14

5:30 am-8:46 am

1 stop4h 16m

$276

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 7/14

5:05 am-1:23 pm

1 stop7h 18m

Missoula Johnson-Bell Field

Mon 7/14

5:20 pm-10:30 pm

1 stop6h 10m

$335

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 7/3

10:55 am-11:55 am

1 stop24h 00m

Missoula Johnson-Bell Field

Mon 7/7

12:40 pm-12:27 am

1 stop12h 47m

$451

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 6/11

6:20 pm-12:06 am

1 stop4h 46m

$102

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 5/19

6:00 am-9:20 pm

1 stop14h 20m

$124

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 7/30

6:07 pm-11:54 pm

1 stop4h 47m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 13 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 May 9, 2025.

The best time to book flights from Irvine to Missoula is 47 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 May 13, 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.

Rainfall in Missoula by month

Plan your trip to Missoula by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missoula ranges from 0.7 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Missoula when rainfall is around 0.7 in.

Temperature in Missoula by month

Plan your trip to Missoula by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missoula, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.8 F).

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 May 13, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Irvine 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

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

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

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,434 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

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
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

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

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

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 6 different airlines.

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

    $102 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 Hawaiian Airlines and American Airlines, with prices starting from $115 and $131, respectively.

  • What are the cheapest flights from Irvine to Missoula?

    On average you can expect to pay $288 for a flight from Irvine to Missoula. The cheapest flight overall is $150 while the most popular route, (Los Angeles - Missoula Johnson-Bell Field) is currently priced at $204.

  • 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 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 May 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$199FlexibilityNo cancel feeOn-time88%
FrontierCheapest$112Average$238FlexibilityNo cancel feeOn-time62%
DeltaCheapest$220Average$371FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$438FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$263Average$438FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$294Average$516FlexibilityNo cancel feeOn-time69%

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