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$115+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 August, 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 July 31, 2025.

Round-trip from

$206
(Mytrip)

One-way from

$111
(Mytrip)

Popular in

March

Cheapest in

July

Average price

$290

Good one-way deal

$167 or less
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. 12% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Missoula Johnson-Bell Field to San Diego.
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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 July 31, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/223:31 pmMSO - SAN
1 stop9h 12mDelta
Tue 8/269:44 amSAN - MSO
1 stop7h 00mDelta
Deal found 7/31$241
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/89:54 pmMSO - SAN
1 stop13h 01mMultiple Airlines
Mon 8/116:15 amSAN - MSO
1 stop8h 15mMultiple Airlines
Deal found 7/30$260
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:10 pmMSO - SAN
1 stop6h 19mUnited Airlines
Wed 11/129:00 amSAN - MSO
1 stop6h 01mUnited Airlines
Deal found 7/30$287
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:14 pmMSO - SAN
2 stops16h 27mAlaska Airlines
Mon 9/2210:18 pmSAN - MSO
2 stops14h 16mAlaska Airlines
Deal found 7/31$293
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.
Thu 9/181:50 pmMSO - SAN
1 stop7h 26mAmerican Airlines
Mon 9/2210:10 amSAN - MSO
1 stop12h 08mAmerican Airlines
Deal found 7/30$344
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.
Sat 8/164:19 pmMSO - SAN
Nonstop2h 58mHawaiian Airlines
Wed 8/207:15 amSAN - MSO
1 stop7h 03mHawaiian Airlines
Deal found 7/31$417

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 July 31, 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 8/22

3:31 pm-11:43 pm

1 stop9h 12m

San Diego

Tue 8/26

9:44 am-5:44 pm

1 stop7h 00m

$241

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sun 11/9

5:10 pm-10:29 pm

1 stop6h 19m

San Diego

Wed 11/12

9:00 am-4:01 pm

1 stop6h 01m

$287

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Tue 9/16

4:14 pm-7:41 am

2 stops16h 27m

San Diego

Mon 9/22

10:18 pm-1:34 pm

2 stops14h 16m

$293

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 9/18

1:50 pm-8:16 pm

1 stop7h 26m

San Diego

Mon 9/22

10:10 am-11:18 pm

1 stop12h 08m

$344

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 8/16

4:19 pm-6:17 pm

Nonstop2h 58m

San Diego

Wed 8/20

7:15 am-3:18 pm

1 stop7h 03m

$417

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Tue 11/25

7:50 pm-6:09 pm

3 stops23h 19m

San Diego

Sun 11/30

5:49 pm-9:23 pm

2 stops26h 34m

$901

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Mon 8/18

12:40 pm-11:52 pm

1 stop12h 12m

$115

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 10/1

6:20 pm-11:44 pm

1 stop6h 24m

$144

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 10/22

1:07 pm-11:55 am

2 stops23h 48m

$157

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 8/15

12:40 pm-11:37 pm

2 stops11h 57m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results
1
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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 July 25, 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 July 31, 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 July 31, 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

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.9
Fair
3,239 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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 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.

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

    Currently priced at $241, 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 United Airlines and Alaska Airlines - these airlines can fly you to your destination from $287 and $293, respectively. Delta is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from Delta and Alaska Airlines, as they are both options that can get you from Missoula to San Diego for a low price.

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

    Consider SkyWest Airlines (100%), American Airlines (100%) or Alaska Airlines (100%) when booking your flight. These represent the most reliable airlines when flying from Missoula to San Diego.

  • What are the cheapest flights from Missoula to San Diego?

    While on average a flight from Missoula to San Diego is generally $283, our data shows the cheapest flight currently is $167. When looking at the most popular route, (Missoula Johnson-Bell Field - San Diego), you can expect to pay $206 for that flight.

  • 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$240Average$368FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$286Average$387FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$290Average$424FlexibilityNo cancel feeOn-time69%

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