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Missoula

$126+ Cheap flights from San Diego to Missoula (SAN - 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — MSO
Oct 22 — Oct 291
Wed 10/22
Wed 10/29
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Missoula Johnson-Bell Field are usually found in October or April, booked 33 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Diego to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 22, 2025.

Round-trip from

$230
(Frontier)

One-way from

$126
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$396
From San Diego to Missoula Johnson-Bell Field
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One-way flight from San Diego to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 17% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Diego to Missoula

Cheapest flights from San Diego to Missoula
Explore the most affordable flight options available from San Diego to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.

This Frontier deal was found by Cheapflights users on 9/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:41 amSAN - MSO
1 stop28h 14mFrontier
Mon 10/1312:50 pmMSO - SAN
1 stop12h 00mFrontier
Deal found 9/20$230
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Thu 10/163:59 pmSAN - MSO
1 stop28h 37mMultiple Airlines
Mon 10/208:44 pmMSO - SAN
1 stop25h 36mMultiple Airlines
Deal found 9/20$239
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Thu 9/258:25 amSAN - MSO
1 stop28h 39mMultiple Airlines
Mon 9/2910:10 pmMSO - SAN
1 stop15h 21mMultiple Airlines
Deal found 9/21$256
This Frontier deal was found by Cheapflights users on 9/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:23 pmSAN - MSO
2 stops15h 32mFrontier
Mon 10/2012:50 pmMSO - SAN
1 stop8h 18mFrontier
Deal found 9/20$296
This Alaska Airlines deal was found by Cheapflights users on 9/20. 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 10/228:00 amSAN - MSO
1 stop6h 23mAlaska Airlines
Sat 10/254:12 pmMSO - SAN
1 stop7h 53mAlaska Airlines
Deal found 9/20$302
This Delta deal was found by Cheapflights users on 9/22. 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 11/205:15 pmSAN - MSO
1 stop6h 04mDelta
Sun 11/235:25 amMSO - SAN
1 stop4h 23mDelta
Deal found 9/22$307
This Delta deal was found by Cheapflights users on 9/20. 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 10/225:25 pmSAN - MSO
1 stop5h 52mDelta
Sat 10/251:07 pmMSO - SAN
2 stops10h 24mDelta
Deal found 9/20$310
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Fri 9/266:25 amSAN - MSO
1 stop6h 39mMultiple Airlines
Mon 9/2910:10 pmMSO - SAN
1 stop15h 21mMultiple Airlines
Deal found 9/21$317
This Alaska Airlines deal was found by Cheapflights users on 9/20. 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 10/228:00 amSAN - MSO
1 stop6h 23mAlaska Airlines
Sun 10/264:12 pmMSO - SAN
1 stop19h 00mAlaska Airlines
Deal found 9/20$342
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 10/166:09 pmSAN - MSO
1 stop4h 50mAlaska Airlines
Mon 10/204:12 pmMSO - SAN
1 stop5h 41mAlaska Airlines
Deal found 9/21$346

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego 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 September 22, 2025.
Use the filters below to find and compare flights from San Diego to Missoula that are best for you.

Fly from

San Diego

Fly to

Missoula

Route

Depart

Return

Price

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 10/16

3:59 pm-9:36 pm

1 stop28h 37m

Missoula Johnson-Bell Field

Mon 10/20

8:44 pm-9:20 pm

1 stop25h 36m

$239

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 11/20

7:07 pm-12:19 am

1 stop4h 12m

Missoula Johnson-Bell Field

Sun 11/23

5:25 am-8:48 am

1 stop4h 23m

$307

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Wed 10/22

5:25 pm-12:17 am

1 stop5h 52m

Missoula Johnson-Bell Field

Sat 10/25

1:07 pm-10:31 pm

2 stops10h 24m

$310

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Wed 10/22

10:20 am-11:59 pm

2 stops12h 39m

Missoula Johnson-Bell Field

Sat 10/25

1:07 pm-9:19 pm

2 stops9h 12m

$329

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Wed 10/22

8:00 am-3:23 pm

1 stop6h 23m

Missoula Johnson-Bell Field

Sun 10/26

4:12 pm-10:12 am

1 stop19h 00m

$342

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 10/16

12:50 pm-11:59 pm

2 stops10h 09m

Missoula Johnson-Bell Field

Mon 10/20

4:12 pm-11:05 pm

1 stop7h 53m

$381

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Mon 10/20

5:31 pm-3:23 pm

2 stops20h 52m

Missoula Johnson-Bell Field

Mon 10/27

12:59 pm-11:40 pm

2 stops11h 41m

$395

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 11/20

12:30 pm-11:43 pm

2 stops10h 13m

Missoula Johnson-Bell Field

Sun 11/23

6:02 am-4:05 pm

2 stops11h 03m

$398

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 10/23

3:59 pm-9:36 pm

1 stop28h 37m

$126

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 10/9

3:59 pm-9:36 pm

1 stop28h 37m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

Showing 1-10 of 20 results
1
2

Best time to book a flight from San Diego to Missoula

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Missoula. Price data was last updated on September 19, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Missoula, you should look to book at least 33 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from San Diego to Missoula (average of $365). Flying from San Diego to Missoula in March is currently the most expensive (average of $503). 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 SAN to MSO?

Find hourly flight availability from San Diego 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 September 22, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Missoula in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight at noon.

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 September 22, 2025.
Read through reviews of airlines operating flights from San Diego to Missoula, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,974 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,743 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

  • How long is the flight from San Diego to Missoula?

    There are many flights that can get you from San Diego to Missoula in 4h 12m. Fly via Delta to get the fastest option. There are 993 mi between San Diego and Missoula.

  • What are the cheapest airlines flying from San Diego to Missoula round-trip?

    Delta, at $263, was found to be the cheapest airline from San Diego to Missoula.Alternate airlines to your destination round-trip include Hawaiian Airlines and Alaska Airlines. Users have found that Delta is 34% cheaper than the other options available to this destination.

  • What are the most reliable airlines from San Diego to Missoula?

    Before booking your flight to Missoula from San Diego, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (40%), American Airlines (40%), Alaska Airlines( 40%).

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

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

  • How can I find direct flights from San Diego to Missoula?

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 San Diego to Missoula?

    Currently, October is the cheapest month in which you can book a flight from San Diego to Missoula (average of $365). Flying from San Diego to Missoula in March is currently the most expensive (average of $503). 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 4 airlines flying from San Diego to Missoula

Discover the top 4 airlines that operate flights from San Diego 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 September 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$263Average$336FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$276Average$456FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$286Average$366FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$320Average$575FlexibilityNo cancel feeOn-time69%

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