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$119+ Cheap flights from Missoula to San Diego (MSO - SAN)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Missoula Johnson-Bell Field to San Diego are usually found in July or September, booked 57 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Missoula to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to San Diego (SAN). 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 15, 2025.

Round-trip from

$166
(Kiwi.com)

One-way from

$119
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$315
From Missoula Johnson-Bell Field to San Diego
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One-way flight from Missoula Johnson-Bell Field to San Diego
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Highest demand for flights based on searches. 11% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% 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 Missoula to San Diego

Cheapest flights from Missoula to San Diego
Explore the most affordable flight options available from Missoula to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/2910:10 pmMSO - SAN
1 stop15h 21mMultiple Airlines
Fri 10/31:35 pmSAN - MSO
1 stop7h 01mMultiple Airlines
Deal found 9/14$166
This Delta deal was found by Cheapflights users on 9/12. 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.
Fri 10/36:20 pmMSO - SAN
1 stop6h 24mDelta
Mon 10/65:25 pmSAN - MSO
1 stop5h 52mDelta
Deal found 9/12$261
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 11/146:18 pmMSO - SAN
1 stop6h 37mDelta
Wed 11/197:06 pmSAN - MSO
1 stop4h 13mDelta
Deal found 9/13$284
This Delta deal was found by Cheapflights users on 9/15. 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 11/195:25 amMSO - SAN
1 stop4h 23mDelta
Sun 11/235:10 pmSAN - MSO
1 stop6h 09mDelta
Deal found 9/15$310
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 10/36:20 pmMSO - SAN
1 stop6h 24mDelta
Sun 10/55:05 pmSAN - MSO
1 stop6h 13mDelta
Deal found 9/13$340
This Delta deal was found by Cheapflights users on 9/13. 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 12/45:01 amMSO - SAN
2 stops11h 22mDelta
Tue 12/96:15 amSAN - MSO
2 stops10h 21mDelta
Deal found 9/13$343
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 11/144:12 pmMSO - SAN
2 stops8h 47mAlaska Airlines
Wed 11/1912:30 pmSAN - MSO
2 stops10h 43mAlaska Airlines
Deal found 9/13$369

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula to San Diego 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 15, 2025.
Use the filters below to find and compare flights from Missoula to San Diego that are best for you.

Fly from

Missoula

Fly to

San Diego

Route

Depart

Return

Price

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 10/3

6:20 pm-11:44 pm

1 stop6h 24m

San Diego

Mon 10/6

5:25 pm-12:17 am

1 stop5h 52m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 1/22

6:10 pm-11:51 pm

1 stop6h 41m

San Diego

Sun 1/25

6:15 am-12:43 pm

1 stop5h 28m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 12/4

5:01 am-8:55 am

1 stop4h 54m

San Diego

Tue 12/9

7:07 pm-12:35 am

1 stop4h 28m

$284

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 11/19

1:13 pm-6:11 pm

1 stop5h 58m

San Diego

Sun 11/23

5:10 pm-12:19 am

1 stop6h 09m

$310

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 10/3

6:20 pm-11:44 pm

1 stop6h 24m

San Diego

Sun 10/5

5:05 pm-12:18 am

1 stop6h 13m

$340

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 9/26

2:54 pm-12:40 pm

2 stops22h 46m

$170

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 9/27

4:14 pm-11:44 pm

2 stops8h 30m

$173

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 9/27

5:45 am-12:46 pm

1 stop8h 01m

$214

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Tue 9/23

5:45 am-1:10 pm

2 stops8h 25m

$223

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 9/24

6:35 am-1:10 pm

2 stops7h 35m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 12 results
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Best time to book a flight from Missoula to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Missoula to San Diego. Price data was last updated on September 12, 2025.

The price you pay for your flight from Missoula to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Missoula to San Diego (average of $286). Flying from Missoula to San Diego in March is currently the most expensive (average of $366). 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 MSO to SAN?

Find hourly flight availability from Missoula to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s optimal to fly from Missoula to San Diego in the morning. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Missoula to San Diego, such as Alaska Airlines, Delta, and United 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

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

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

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

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
7,956 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

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
8,931 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

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 Missoula to San Diego. 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 Missoula to San Diego?

    Airlines like Delta fly from Missoula to San Diego in about 6h 24m. The time it takes to get you to your destination can typically vary by up to . Missoula and San Diego are separated by a distance of 993 mi.

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

    Currently priced at $240, Delta will fly you from Missoula to San Diego and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and United Airlines - these airlines can fly you to your destination from $286 and $290, respectively. Delta is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Consider SkyWest Airlines (57%), American Airlines (57%) or Alaska Airlines (57%) when booking your flight. These represent the most reliable airlines when flying from Missoula to San Diego.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Missoula to San Diego (average of $286). Flying from Missoula to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Top 3 airlines flying from Missoula to San Diego

Discover the top 3 airlines that operate flights from Missoula to San Diego. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$240Average$375FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$286Average$386FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$290Average$438FlexibilityNo cancel feeOn-time69%

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