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$87+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from Missoula Johnson-Bell Field to San Diego are usually found in June 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 June 18, 2025.

Round-trip from

$159
(Mytrip)

One-way from

$87
(Mytrip)

Popular in

March

Cheapest in

June

Average price

$313
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. 13% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 18, 2025.

This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3010:07 pmMSO - SAN
1 stop21h 19mMultiple Airlines
Fri 7/48:08 amSAN - MSO
1 stop12h 01mMultiple Airlines
Deal found 6/15$159
This Frontier deal was found by Cheapflights users on 6/16. 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.
Fri 6/2712:40 pmMSO - SAN
1 stop12h 15mFrontier
Sun 6/296:25 amSAN - MSO
1 stop28h 30mFrontier
Deal found 6/16$200
This American Airlines deal was found by Cheapflights users on 6/16. 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 8/211:51 pmMSO - SAN
1 stop8h 45mAmerican Airlines
Mon 8/251:08 pmSAN - MSO
1 stop9h 21mAmerican Airlines
Deal found 6/16$241
This Delta deal was found by Cheapflights users on 6/17. 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 7/95:30 amMSO - SAN
1 stop4h 09mDelta
Mon 7/145:00 pmSAN - MSO
1 stop6h 24mDelta
Deal found 6/17$251
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Sat 7/125:20 pmMSO - SAN
1 stop5h 54mUnited Airlines
Mon 7/146:45 amSAN - MSO
1 stop5h 38mUnited Airlines
Deal found 6/17$264
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/64:13 pmMSO - SAN
2 stops16h 29mAlaska Airlines
Wed 8/136:15 amSAN - MSO
1 stop8h 02mAlaska Airlines
Deal found 6/15$270
This Hawaiian Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 8/256:35 amMSO - SAN
1 stop7h 17mHawaiian Airlines
Thu 8/286:15 amSAN - MSO
1 stop8h 03mHawaiian Airlines
Deal found 6/16$286

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 June 18, 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

Mon 6/30

10:07 pm-6:26 pm

1 stop21h 19m

San Diego

Fri 7/4

8:08 am-9:09 pm

1 stop12h 01m

$159

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 8/21

1:51 pm-9:36 pm

1 stop8h 45m

San Diego

Mon 8/25

1:08 pm-11:29 pm

1 stop9h 21m

$241

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 7/9

5:30 am-8:39 am

1 stop4h 09m

San Diego

Tue 7/15

5:00 pm-12:24 am

1 stop6h 24m

$251

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 7/12

5:20 pm-10:14 pm

1 stop5h 54m

San Diego

Mon 7/14

6:45 am-1:23 pm

1 stop5h 38m

$264

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 8/6

4:13 pm-7:42 am

2 stops16h 29m

San Diego

Wed 8/13

6:15 am-3:17 pm

1 stop8h 02m

$270

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Mon 8/25

6:35 am-12:52 pm

1 stop7h 17m

San Diego

Thu 8/28

6:15 am-3:18 pm

1 stop8h 03m

$286

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Mon 10/6

8:44 pm-10:45 am

1 stop15h 01m

$87

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 6/27

12:40 pm-7:39 pm

1 stop7h 59m

$100

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 8/2

6:36 pm-10:55 pm

1 stop5h 19m

$143

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Mon 8/18

1:15 pm-8:52 pm

2 stops8h 37m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 13 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 June 13, 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 June 18, 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.

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 June 18, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Missoula to San Diego. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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 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, American Airlines will fly you from Missoula to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $251 and $264, respectively. American Airlines is 36% 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 $100. However, be on the lookout for offers from Hawaiian Airlines 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.

  • 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 Missoula?

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

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Top 4 airlines flying from Missoula to San Diego

Discover the top 4 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$206FlexibilityNo cancel feeOn-time62%
DeltaCheapest$240Average$382FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$290Average$414FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$296Average$381FlexibilityNo cancel feeOn-time75%

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