$137+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SAN
Mar 5 — Mar 121
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 February 3, 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 February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/238:17 pm
MSO
- SAN
1 stop17h 56m
Multiple Airlines
Thu 3/269:59 pm
SAN
- MSO
1 stop20h 28m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$256
This Delta deal was found by Cheapflights users on 2/3. 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 3/66:10 pm
MSO
- SAN
1 stop6h 36m
Delta
Tue 3/176:15 am
SAN
- MSO
1 stop5h 01m
Delta
Deal found 2/3![Delta logo]()
$261
This Delta deal was found by Cheapflights users on 2/2. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Tue 3/39:50 am
SAN
- MSO
1 stop6h 33m
Delta
Deal found 2/2![Delta logo]()
$266
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 3/55:16 pm
MSO
- SAN
1 stop6h 19m
United Airlines
Sun 3/86:30 am
SAN
- MSO
1 stop6h 03m
United Airlines
Deal found 2/1![United Airlines logo]()
$272
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/46:23 am
MSO
- SAN
2 stops16h 11m
Alaska Airlines
Tue 3/108:30 am
SAN
- MSO
2 stops14h 29m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 2/2. 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 5/65:20 am
MSO
- SAN
1 stop4h 22m
Delta
Mon 5/117:10 pm
SAN
- MSO
1 stop4h 12m
Delta
Deal found 2/2![Delta logo]()
$284
This CheapOair deal was found by Cheapflights users on 2/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:39 pm
MSO
- SAN
Nonstop2h 59m
Alaska Airlines
Mon 7/208:30 am
SAN
- MSO
Nonstop2h 49m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 2/3. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Sat 2/281:40 pm
SAN
- MSO
2 stops8h 50m
Delta
Deal found 2/3![Delta logo]()
$295
This deal was found by Cheapflights users on 1/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:15 am
MSO
- SAN
1 stop4h 30m
Delta
Sun 3/16:15 am
SAN
- MSO
1 stop5h 11m
Delta
Deal found 1/31![Delta logo]()
$304
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 February 3, 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 February 3, 2026.
This Delta deal was found by Cheapflights users on 2/3. 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 3/66:10 pm
MSO
- SAN
1 stop6h 36m
Delta
Tue 3/176:15 am
SAN
- MSO
1 stop5h 01m
Delta
Deal found 2/3![Delta logo]()
$261
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/62:35 pm
MSO
- SAN
1 stop7h 28m
United Airlines
Sun 3/86:30 am
SAN
- MSO
1 stop8h 38m
United Airlines
Deal found 2/3![United Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/46:23 am
MSO
- SAN
2 stops15h 16m
Alaska Airlines
Wed 3/118:30 am
SAN
- MSO
2 stops14h 29m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 2/2. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Tue 3/39:50 am
SAN
- MSO
1 stop6h 33m
Delta
Deal found 2/2![Delta logo]()
$266
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 3/55:16 pm
MSO
- SAN
1 stop6h 19m
United Airlines
Sun 3/86:30 am
SAN
- MSO
1 stop6h 03m
United Airlines
Deal found 2/1![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 2/2. 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 3/46:10 pm
MSO
- SAN
1 stop6h 36m
Delta
Wed 3/117:05 pm
SAN
- MSO
1 stop4h 19m
Delta
Deal found 2/2![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Thu 2/265:08 pm
MSO
- SAN
1 stop6h 27m
United Airlines
Sat 2/286:15 am
SAN
- MSO
1 stop6h 48m
United Airlines
Deal found 2/3![United Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 2/3. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Sat 2/281:40 pm
SAN
- MSO
2 stops8h 50m
Delta
Deal found 2/3![Delta logo]()
$295
This deal was found by Cheapflights users on 1/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:15 am
MSO
- SAN
1 stop4h 30m
Delta
Sun 3/16:15 am
SAN
- MSO
1 stop5h 11m
Delta
Deal found 1/31![Delta logo]()
$304
Last-minute flights from Missoula to San DiegoDiscover last-minute flight deals from Missoula to San Diego. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to San Diego. Data last updated February 3, 2026 and is based on user searches.
This deal was found by Cheapflights users on 1/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:15 am
MSO
- SAN
1 stop4h 30m
Delta
Sun 3/16:15 am
SAN
- MSO
1 stop5h 11m
Delta
Deal found 1/31![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 2/2. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Tue 3/39:50 am
SAN
- MSO
1 stop6h 33m
Delta
Deal found 2/2![Delta logo]()
$266
This Delta deal was found by Cheapflights users on 2/3. 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 2/261:16 pm
MSO
- SAN
2 stops10h 04m
Delta
Sat 2/286:15 am
SAN
- MSO
1 stop5h 11m
Delta
Deal found 2/3![Delta logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/46:23 am
MSO
- SAN
2 stops16h 11m
Alaska Airlines
Tue 3/108:30 am
SAN
- MSO
2 stops14h 29m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 3/55:16 pm
MSO
- SAN
1 stop6h 19m
United Airlines
Sun 3/86:30 am
SAN
- MSO
1 stop6h 03m
United Airlines
Deal found 2/1![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 2/3. 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 3/66:10 pm
MSO
- SAN
1 stop6h 36m
Delta
Tue 3/176:15 am
SAN
- MSO
1 stop5h 01m
Delta
Deal found 2/3![Delta logo]()
$261
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 3/166:04 pm
MSO
- SAN
1 stop6h 44m
Delta
Fri 3/207:05 pm
SAN
- MSO
1 stop4h 19m
Delta
Deal found 2/2![Delta logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/238:17 pm
MSO
- SAN
1 stop17h 56m
Multiple Airlines
Thu 3/269:59 pm
SAN
- MSO
1 stop20h 28m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$256
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 February 3, 2026.
Search for one-way flight options from Missoula to San Diego. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 4/87:00 am
MSO
- SAN
2 stops10h 25m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$137
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 4/61:20 pm
MSO
- SAN
1 stop10h 20m
American Airlines
Deal found 2/1![American Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 2/1. 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 4/71:07 pm
MSO
- SAN
2 stops10h 41m
Delta
Deal found 2/1![Delta logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/911:48 am
MSO
- SAN
1 stop20h 33m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/46:20 pm
MSO
- SAN
1 stop14h 01m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/51:36 pm
MSO
- SAN
1 stop18h 45m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$206
This Delta deal was found by Cheapflights users on 2/1. 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 4/35:20 am
MSO
- SAN
1 stop4h 25m
Delta
Deal found 2/1![Delta logo]()
$240
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 4/97:00 am
MSO
- SAN
2 stops18h 04m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/64:05 pm
MSO
- SAN
3 stops24h 31m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 4/37:00 am
MSO
- SAN
2 stops14h 08m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 4/41:53 pm
MSO
- SAN
2 stops19h 03m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$312
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 February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Delta) |
One-way from | $137 (Alaska Airlines) |
Popular in | November |
Cheapest in | July |
Average price | $316 |
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 February 3, 2026.
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 3/6
6:10 pm-11:46 pm
1 stop6h 36m
San Diego
Tue 3/17
6:15 am-12:16 pm
1 stop5h 01m
$261
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Fri 3/6
2:35 pm-9:03 pm
1 stop7h 28m
San Diego
Sun 3/8
6:30 am-4:08 pm
1 stop8h 38m
$261
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 2/26
1:16 pm-10:20 pm
2 stops10h 04m
San Diego
Tue 3/3
9:50 am-5:23 pm
1 stop6h 33m
$266
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 3/5
5:16 pm-10:35 pm
1 stop6h 19m
San Diego
Sun 3/8
6:30 am-1:33 pm
1 stop6h 03m
$272
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 3/4
6:23 am-8:39 pm
2 stops15h 16m
San Diego
Wed 3/11
8:30 am-11:59 pm
2 stops14h 29m
$283
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 3/4
6:10 pm-11:46 pm
1 stop6h 36m
San Diego
Wed 3/11
7:05 pm-12:24 am
1 stop4h 19m
$284
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 2/26
5:08 pm-10:35 pm
1 stop6h 27m
San Diego
Sat 2/28
6:15 am-2:03 pm
1 stop6h 48m
$284
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Thu 2/26
1:16 pm-10:20 pm
2 stops10h 04m
San Diego
Sat 2/28
1:40 pm-11:30 pm
2 stops8h 50m
$295
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 2/25
5:15 am-8:45 am
1 stop4h 30m
San Diego
Sun 3/1
6:15 am-12:26 pm
1 stop5h 11m
$304
MissoulaSan Diego
MSO - SAN
MSOSAN
Missoula Johnson-Bell Field
Wed 4/8
7:00 am-4:25 pm
2 stops10h 25m
$137
Showing 1-10 of 20 results
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 February.
| 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 January 30, 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 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, 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 December is currently the most expensive (average of $274). 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.
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 February 3, 2026.
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.
Overall
8.0
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Overall
8.0
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Overall
8.0
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Overall
8.0
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Overall
8.0
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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Top 4 airlines flying from Missoula to San Diego
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$406 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$222 | Average$445 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$228 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$302 | FlexibilityNo cancel fee | On-time69% |