$129+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
May 10 — May 171
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missoula to San Diego
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Best
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Cheapest flights from Missoula to San DiegoExplore 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 April 10, 2026.
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 April 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 5/118:54 pm
MSO
- SAN
1 stop25h 10m
Multiple Airlines
Sun 5/179:59 pm
SAN
- MSO
1 stop21h 05m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 8/209:52 pm
MSO
- SAN
1 stop24h 06m
Multiple Airlines
Sat 8/299:53 pm
SAN
- MSO
1 stop22h 09m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 4/208:54 pm
MSO
- SAN
1 stop17h 23m
Multiple Airlines
Thu 4/239:00 pm
SAN
- MSO
1 stop22h 04m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 4/6. 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 5/11:40 pm
MSO
- SAN
1 stop5h 25m
Delta
Tue 5/57:12 pm
SAN
- MSO
1 stop4h 04m
Delta
Deal found 4/6![Delta logo]()
$321
This Delta deal was found by Cheapflights users on 4/7. 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 8/136:10 pm
MSO
- SAN
1 stop6h 32m
Delta
Mon 8/177:10 pm
SAN
- MSO
1 stop4h 14m
Delta
Deal found 4/7![Delta logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 5/711:48 am
MSO
- SAN
1 stop25h 55m
Multiple Airlines
Thu 5/149:59 pm
SAN
- MSO
1 stop21h 05m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 4/9. 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.
Sat 5/23:55 pm
MSO
- SAN
1 stop7h 41m
Alaska Airlines
Tue 5/57:15 am
SAN
- MSO
1 stop6h 44m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$347
Best flights from Missoula to San DiegoDiscover carefully curated flight deals from Missoula to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
Discover carefully curated flight deals from Missoula to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
This Delta deal was found by Cheapflights users on 4/6. 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 5/11:40 pm
MSO
- SAN
2 stops9h 56m
Delta
Tue 5/53:15 pm
SAN
- MSO
2 stops8h 01m
Delta
Deal found 4/6![Delta logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Sat 5/232:03 pm
MSO
- SAN
1 stop9h 23m
Alaska Airlines
Wed 5/275:17 pm
SAN
- MSO
1 stop5h 42m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 4/8. 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.
Fri 6/55:20 pm
MSO
- SAN
1 stop6h 05m
United Airlines
Mon 6/86:35 am
SAN
- MSO
1 stop8h 45m
United Airlines
Deal found 4/8![United Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 5/55:20 am
MSO
- SAN
2 stops10h 30m
Delta
Tue 5/123:15 pm
SAN
- MSO
2 stops8h 07m
Delta
Deal found 4/7![Delta logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Sat 5/23:55 pm
MSO
- SAN
1 stop7h 41m
Alaska Airlines
Tue 5/57:15 am
SAN
- MSO
1 stop6h 44m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 4/5. 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 5/236:05 pm
MSO
- SAN
1 stop4h 50m
Delta
Wed 5/275:01 pm
SAN
- MSO
1 stop6h 21m
Delta
Deal found 4/5![Delta logo]()
$367
This Delta deal was found by Cheapflights users on 4/5. 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 5/95:30 am
MSO
- SAN
2 stops10h 27m
Delta
Sat 5/169:50 am
SAN
- MSO
1 stop6h 34m
Delta
Deal found 4/5![Delta logo]()
$372
Last-minute flights from Missoula to San DiegoDiscover last-minute flight deals from Missoula to San Diego. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to San Diego. Data last updated April 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 4/208:54 pm
MSO
- SAN
1 stop17h 23m
Multiple Airlines
Thu 4/239:00 pm
SAN
- MSO
1 stop22h 04m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$273
This United Airlines deal was found by Cheapflights users on 4/6. 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.
Tue 4/216:15 am
MSO
- SAN
1 stop7h 37m
United Airlines
Mon 4/276:32 am
SAN
- MSO
1 stop6h 00m
United Airlines
Deal found 4/6![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 4/6. 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 5/11:40 pm
MSO
- SAN
1 stop5h 25m
Delta
Tue 5/57:12 pm
SAN
- MSO
1 stop4h 04m
Delta
Deal found 4/6![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 4/9. 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.
Sat 5/23:55 pm
MSO
- SAN
1 stop7h 41m
Alaska Airlines
Tue 5/57:15 am
SAN
- MSO
1 stop6h 44m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 5/711:48 am
MSO
- SAN
1 stop25h 55m
Multiple Airlines
Thu 5/149:59 pm
SAN
- MSO
1 stop21h 05m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 5/118:54 pm
MSO
- SAN
1 stop25h 10m
Multiple Airlines
Sun 5/179:59 pm
SAN
- MSO
1 stop21h 05m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$198
One-way flights from Missoula to San DiegoSearch for one-way flight options from Missoula to San Diego. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
Search for one-way flight options from Missoula to San Diego. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 7/210:24 am
MSO
- SAN
1 stop10h 10m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$129
This American Airlines deal was found by Cheapflights users on 4/7. 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.
Sat 5/301:19 pm
MSO
- SAN
1 stop11h 20m
American Airlines
Deal found 4/7![American Airlines logo]()
$184
This deal was found by Cheapflights users on 4/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:08 pm
MSO
- SAN
1 stop4h 58m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$272
This United Airlines deal was found by Cheapflights users on 4/10. 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 4/186:15 am
MSO
- SAN
1 stop7h 35m
United Airlines
Deal found 4/10![United Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 4/6. 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.
Sat 4/186:45 am
MSO
- SAN
2 stops10h 00m
American Airlines
Deal found 4/6![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 4/10. 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 4/181:40 pm
MSO
- SAN
2 stops9h 56m
Delta
Deal found 4/10![Delta logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Sat 5/308:02 pm
MSO
- SAN
3 stops19h 08m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$378
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $198 (Kiwi.com) |
One-way from | $129 (Kiwi.com) |
Popular in | November |
Cheapest in | July |
Average price | $391 |
Good one-way deal | $163 or less |
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 April 10, 2026.
Use the filters below to find and compare flights from Missoula to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Fri 5/1
1:40 pm-10:36 pm
2 stops9h 56m
San Diego
Tue 5/5
3:15 pm-12:16 am
2 stops8h 01m
$331
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Tue 5/5
5:20 am-2:50 pm
2 stops10h 30m
San Diego
Tue 5/12
3:15 pm-12:22 am
2 stops8h 07m
$351
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 5/23
2:03 pm-10:26 pm
1 stop9h 23m
San Diego
Wed 5/27
5:17 pm-11:59 pm
1 stop5h 42m
$363
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Fri 6/5
5:20 pm-10:25 pm
1 stop6h 05m
San Diego
Mon 6/8
6:35 am-4:20 pm
1 stop8h 45m
$366
Quickest round-trip
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 5/23
6:05 pm-9:55 pm
1 stop4h 50m
San Diego
Wed 5/27
5:01 pm-12:22 am
1 stop6h 21m
$367
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 5/9
5:30 am-2:57 pm
2 stops10h 27m
San Diego
Sat 5/16
9:50 am-5:24 pm
1 stop6h 34m
$372
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 5/2
3:55 pm-10:36 pm
1 stop7h 41m
San Diego
Tue 5/5
7:15 am-2:59 pm
1 stop6h 44m
$377
Cheapest one-way
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 5/30
6:45 am-6:19 pm
2 stops12h 34m
$189
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 7/2
10:24 am-9:09 am
2 stops23h 45m
$210
Quickest one-way
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Fri 5/1
1:08 pm-5:06 pm
1 stop4h 58m
$272
Showing 1-10 of 13 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Missoula-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
MSO-SAN
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 April 3, 2026.
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 39 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, June is the cheapest month in which you can book a flight from Missoula to San Diego (average of $138). Flying from Missoula to San Diego in April is currently the most expensive (average of $277). 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.
How much does it cost to fly round-trip from Missoula to San Diego?
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 April 10, 2026.
Read through reviews of airlines operating flights from Missoula to San Diego, such as Alaska Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Food
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.0
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove
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Missoula and San Diego flights
Browse other Missoula and San Diego flight options. Last updated on April 10, 2026.
Other flights from Missoula
Browse through other flights departing from Missoula. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$222 | Average$445 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$240 | Average$330 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$342 | FlexibilityNo cancel fee | On-time69% |