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$154+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 40 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap 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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/171:13 pmMSO - SAN
1 stop5h 59mDelta
Thu 12/256:15 amSAN - MSO
1 stop4h 39mDelta
Deal found 12/16$546
This Delta deal was found by Cheapflights users on 12/17. 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.
Sat 12/205:20 amMSO - SAN
1 stop6h 15mDelta
Sun 12/285:03 pmSAN - MSO
1 stop6h 30mDelta
Deal found 12/17$644
This Delta deal was found by Cheapflights users on 12/17. 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.
Sat 12/275:20 amMSO - SAN
1 stop4h 35mDelta
Tue 12/307:10 pmSAN - MSO
1 stop4h 23mDelta
Deal found 12/17$814

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$240
(eDestinos)

One-way from

$154
(Delta)

Popular in

November

Cheapest in

July

Average price

$380
Provider with most accurate pricing for Missoula Johnson-Bell Field-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-San Diego flights.
Search Deals
From Missoula Johnson-Bell Field to San Diego
Search Deals
One-way flight from Missoula Johnson-Bell Field to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 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

Wed 2/25

6:23 am-11:03 pm

1 stop17h 40m

San Diego

Sat 2/28

6:15 am-11:59 pm

1 stop16h 44m

$244

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 2/25

1:16 pm-10:20 pm

2 stops10h 04m

San Diego

Sat 2/28

10:59 am-11:25 pm

2 stops11h 26m

$246

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 1/7

5:00 am-12:48 pm

2 stops8h 48m

San Diego

Mon 1/12

5:45 pm-12:29 am

1 stop5h 44m

$253

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 2/20

1:16 pm-6:06 pm

1 stop5h 50m

San Diego

Tue 2/24

6:50 am-5:23 pm

2 stops9h 33m

$253

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 2/20

6:23 am-11:03 pm

1 stop17h 40m

San Diego

Wed 2/25

6:15 am-11:59 pm

1 stop16h 44m

$254

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 1/22

2:37 pm-8:42 pm

1 stop7h 05m

San Diego

Sun 1/25

9:00 am-4:02 pm

1 stop6h 02m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 1/21

5:00 am-8:50 am

1 stop4h 50m

San Diego

Sun 1/25

7:03 pm-12:28 am

1 stop4h 25m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 1/22

5:00 am-8:50 am

1 stop4h 50m

San Diego

Sun 1/25

7:03 pm-12:28 am

1 stop4h 25m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 1/9

5:00 am-8:49 am

1 stop4h 49m

San Diego

Sun 1/11

5:45 pm-12:29 am

1 stop5h 44m

$261

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sun 1/18

5:00 am-8:49 am

1 stop4h 49m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 15 results
1
2

Compare providers for flights from Missoula to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Missoula-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Missoula-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Missoula-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 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 40 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, May is the cheapest month in which you can book a flight from Missoula to San Diego (average of $110). Flying from Missoula to San Diego in December is currently the most expensive (average of $273). 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 December 18, 2025.

It’s optimal to fly from Missoula to San Diego at noon. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the afternoon.

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 December 18, 2025.
Read through reviews of airlines operating flights from Missoula to San Diego, 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
11,479 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

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
11,479 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

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
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

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
2,820 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

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
9,095 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

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 Alaska Airlines and Delta fly from Missoula to San Diego in about 10h 04m. The time it takes to get you to your destination can typically vary by up to 7h 36m. Missoula and San Diego are separated by a distance of 993 mi. This flight may include one or multiple stops.

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

    Currently priced at $138, Hawaiian Airlines will fly you from Missoula to San Diego and back. In addition to Hawaiian 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 $228 and $249, respectively. Hawaiian Airlines is 63% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, May is the cheapest month in which you can book a flight from Missoula to San Diego (average of $110). Flying from Missoula to San Diego in December is currently the most expensive (average of $273). 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
National City
La Mesa
Poway
Julian
Lemon Grove

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$138Average$666FlexibilityNo cancel feeOn-time85%
DeltaCheapest$240Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$249Average$298FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$286Average$415FlexibilityNo cancel feeOn-time75%

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