$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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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Find cheap flights from Missoula to San Diego with Cheapflights
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
Last-minute
One-way
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 June 9, 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 June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2310:24 am
MSO
- SAN
1 stop10h 42m
Multiple Airlines
Wed 7/293:03 pm
SAN
- MSO
1 stop17h 31m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/2610:24 am
MSO
- SAN
2 stops30h 03m
Multiple Airlines
Sat 8/18:51 pm
SAN
- MSO
1 stop11h 43m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2810:25 am
MSO
- SAN
1 stop23h 23m
Multiple Airlines
Wed 7/19:46 am
SAN
- MSO
1 stop22h 48m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Fri 6/262:46 pm
MSO
- SAN
2 stops43h 02m
Multiple Airlines
Wed 7/83:03 pm
SAN
- MSO
1 stop17h 31m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:46 pm
MSO
- SAN
2 stops34h 29m
Multiple Airlines
Wed 7/19:46 am
SAN
- MSO
1 stop22h 48m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$369
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 June 9, 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 June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/5. 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.
Thu 7/2310:24 am
MSO
- SAN
1 stop10h 42m
Multiple Airlines
Wed 7/294:38 pm
SAN
- MSO
2 stops15h 56m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 6/6. 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.
Thu 8/136:27 pm
MSO
- SAN
1 stop6h 23m
Delta
Mon 8/177:13 pm
SAN
- MSO
1 stop4h 05m
Delta
Deal found 6/6![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 6/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:15 am
MSO
- SAN
1 stop28h 24m
Alaska Airlines
Mon 8/248:33 pm
SAN
- MSO
2 stops15h 52m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:30 am
MSO
- SAN
1 stop4h 11m
Delta
Tue 9/15:01 pm
SAN
- MSO
1 stop5h 11m
Delta
Deal found 6/9![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 8/257:15 am
MSO
- SAN
2 stops10h 27m
Alaska Airlines
Tue 9/16:55 am
SAN
- MSO
1 stop5h 30m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 10/297:00 am
MSO
- SAN
2 stops10h 25m
Alaska Airlines
Mon 11/28:04 pm
SAN
- MSO
1 stop16h 11m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am
MSO
- SAN
2 stops9h 52m
Alaska Airlines
Mon 11/27:14 pm
SAN
- MSO
2 stops25h 11m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$435
Last-minute flights from Missoula to San DiegoDiscover last-minute flight deals from Missoula to San Diego. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to San Diego. Data last updated June 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Fri 6/262:46 pm
MSO
- SAN
2 stops43h 02m
Multiple Airlines
Wed 7/83:03 pm
SAN
- MSO
1 stop17h 31m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:46 pm
MSO
- SAN
2 stops34h 29m
Multiple Airlines
Wed 7/19:46 am
SAN
- MSO
1 stop22h 48m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2810:25 am
MSO
- SAN
1 stop23h 23m
Multiple Airlines
Wed 7/19:46 am
SAN
- MSO
1 stop22h 48m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2310:24 am
MSO
- SAN
1 stop10h 42m
Multiple Airlines
Wed 7/293:03 pm
SAN
- MSO
1 stop17h 31m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/2610:24 am
MSO
- SAN
2 stops30h 03m
Multiple Airlines
Sat 8/18:51 pm
SAN
- MSO
1 stop11h 43m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$319
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 June 9, 2026.
Search for one-way flight options from Missoula to San Diego. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:24 am
MSO
- SAN
1 stop10h 42m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 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
Deal found 6/8![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 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 6/8![Multiple Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 6/4. 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 8/125:30 am
MSO
- SAN
1 stop4h 11m
Delta
Deal found 6/4![Delta logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:24 am
MSO
- SAN
2 stops38h 40m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$206
This Booking.com deal was found by Cheapflights users on 6/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:41 pm
MSO
- SAN
2 stops16h 54m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 8/111:25 pm
MSO
- SAN
1 stop7h 29m
American Airlines
Deal found 6/6![American Airlines logo]()
$219
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:16 pm
MSO
- SAN
2 stops17h 32m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$224
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 June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (Kiwi.com) |
One-way from | $129 (Kiwi.com) |
Popular in | November |
Cheapest in | July |
Average price | $584 |
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 9, 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
Thu 7/23
10:24 am-8:06 pm
1 stop10h 42m
San Diego
Wed 7/29
4:38 pm-9:34 am
2 stops15h 56m
$270
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 8/13
6:27 pm-11:50 pm
1 stop6h 23m
San Diego
Mon 8/17
7:13 pm-12:18 am
1 stop4h 05m
$377
Quickest round-trip
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Tue 8/25
5:30 am-8:41 am
1 stop4h 11m
San Diego
Tue 9/1
5:01 pm-11:12 pm
1 stop5h 11m
$377
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Fri 8/21
7:15 am-10:39 am
1 stop28h 24m
San Diego
Mon 8/24
8:33 pm-1:25 pm
2 stops15h 52m
$394
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Tue 8/25
7:15 am-4:42 pm
2 stops10h 27m
San Diego
Tue 9/1
6:55 am-1:25 pm
1 stop5h 30m
$405
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 10/29
7:00 am-4:25 pm
2 stops10h 25m
San Diego
Mon 11/2
8:04 pm-1:15 pm
1 stop16h 11m
$417
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 10/28
7:00 am-3:52 pm
2 stops9h 52m
San Diego
Mon 11/2
7:14 pm-9:25 pm
2 stops25h 11m
$435
Cheapest one-way
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 8/12
5:30 am-8:41 am
1 stop4h 11m
$199
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sat 10/24
10:38 am-5:05 pm
1 stop7h 27m
$199
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Sun 8/2
10:24 am-8:06 pm
1 stop10h 42m
$211
Showing 1-10 of 17 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 June.
| 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?
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 38 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, July is the cheapest month in which you can book a flight from Missoula to San Diego (average of $275). Flying from Missoula to San Diego in November is currently the most expensive (average of $688). 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 June 9, 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.
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
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
Poway
Coronado
La Mesa
Santee
Julian
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Missoula and San Diego flights
Browse other Missoula and San Diego flight options. Last updated on June 9, 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 June 9, 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 June 9, 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 June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$222 | Average$457 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$240 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$359 | FlexibilityNo cancel fee | On-time69% |