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$104+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — MSO
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Missoula Johnson-Bell Field are usually found in September or April, 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 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$210
(Hawaiian Airlines)

One-way from

$104
(United Airlines)

Popular in

January

Cheapest in

September

Average price

$473
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. 10% potential increase in price ($53 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 1, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/47:00 amLAX - MSO
1 stop6h 21mHawaiian Airlines
Tue 6/101:59 pmMSO - LAX
1 stop7h 29mHawaiian Airlines
Deal found 4/29$210
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/35:05 pmLAX - MSO
1 stop6h 16mDelta
Fri 6/65:40 amMSO - LAX
1 stop4h 10mDelta
Deal found 4/28$217
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 6/211:20 amLAX - MSO
1 stop11h 46mAlaska Airlines
Sat 6/76:42 amMSO - LAX
1 stop5h 08mAlaska Airlines
Deal found 4/29$220
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/292:41 pmLAX - MSO
1 stop5h 40mUnited Airlines
Thu 6/54:21 pmMSO - LAX
1 stop4h 57mUnited Airlines
Deal found 4/29$233
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:24 amLAX - MSO
Nonstop2h 41mAmerican Airlines
Wed 7/163:35 pmMSO - LAX
Nonstop2h 52mAmerican Airlines
Deal found 4/29$255

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 1, 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 6/4

7:00 am-2:21 pm

1 stop6h 21m

Missoula Johnson-Bell Field

Tue 6/10

1:59 pm-8:28 pm

1 stop7h 29m

$210

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Tue 6/3

5:05 pm-12:21 am

1 stop6h 16m

Missoula Johnson-Bell Field

Fri 6/6

5:40 am-8:50 am

1 stop4h 10m

$217

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 6/2

11:20 am-12:06 am

1 stop11h 46m

Missoula Johnson-Bell Field

Sat 6/7

6:42 am-10:50 am

1 stop5h 08m

$220

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Thu 5/29

2:41 pm-9:21 pm

1 stop5h 40m

Missoula Johnson-Bell Field

Thu 6/5

4:21 pm-8:18 pm

1 stop4h 57m

$233

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 7/9

11:24 am-3:05 pm

Nonstop2h 41m

Missoula Johnson-Bell Field

Wed 7/16

3:35 pm-5:27 pm

Nonstop2h 52m

$255

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 7/21

2:38 pm-9:23 pm

1 stop5h 45m

Missoula Johnson-Bell Field

Fri 8/1

5:45 am-9:35 am

1 stop4h 50m

$651

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Tue 6/3

2:35 pm-9:21 pm

1 stop5h 46m

$104

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Wed 6/11

6:00 am-12:13 pm

1 stop5h 13m

$105

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Tue 7/29

7:00 am-3:17 pm

1 stop7h 17m

$109

Los AngelesMissoula

LAX - MSO

LAXMSO

Los Angeles

Mon 6/30

3:20 pm-11:46 pm

1 stop7h 26m

$110

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 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 April 25, 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 1, 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 1, 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
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

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 6 different airlines.

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

    $104 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $105 and $109, respectively.

  • What are the cheapest flights from Irvine to Missoula?

    On average you can expect to pay $398 for a flight from Irvine to Missoula. The cheapest flight overall is $255 while the most popular route, (Los Angeles - Missoula Johnson-Bell Field) is currently priced at $210.

  • 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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$203FlexibilityNo cancel feeOn-time88%
FrontierCheapest$112Average$227FlexibilityNo cancel feeOn-time62%
DeltaCheapest$220Average$375FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$254Average$442FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$291Average$435FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$532FlexibilityNo cancel feeOn-time69%

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