$81+ Cheap flights from San Antonio to San Diego (SAT - 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio 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.Cheapflights Tip: The best prices from San Antonio to San Diego are usually found in October or April, booked 2 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
Cheap flight deals from San Antonio to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Antonio to San DiegoExplore the most affordable flight options available from San Antonio to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from San Antonio to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Frontier deal was found by Cheapflights users on 8/11. 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.
Thu 9/108:20 pm -
1 stop5h 31m
Mon 9/146:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$164
This Frontier deal was found by Cheapflights users on 8/11. 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.
Sat 9/128:20 pm -
1 stop5h 31m
Mon 9/144:54 pm -
1 stop24h 31m
Deal found 8/11![Frontier logo]()
$165
This Frontier deal was found by Cheapflights users on 8/11. 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.
Wed 9/98:20 pm -
1 stop5h 31m
Wed 9/166:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 8/12. 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 9/118:20 pm -
1 stop5h 31m
Mon 9/146:25 am -
1 stop11h 00m
Deal found 8/12![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 8/11. 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.
Mon 9/218:20 pm -
1 stop5h 31m
Fri 9/259:03 pm -
1 stop14h 45m
Deal found 8/11![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Mon 9/2112:39 pm -
1 stop9h 38m
Mon 9/289:03 pm -
1 stop15h 17m
Deal found 8/7![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:26 pm -
2 stops39h 17m
Mon 9/149:03 pm -
1 stop15h 17m
Deal found 8/11![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/48:26 pm -
2 stops25h 49m
Mon 9/149:03 pm -
1 stop15h 17m
Deal found 8/11![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/178:20 pm -
1 stop29h 31m
Mon 9/216:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:26 pm -
1 stop29h 25m
Sat 9/126:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$230
Best flights from San Antonio to San DiegoDiscover carefully curated flight deals from San Antonio to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from San Antonio to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:05 pm -
Nonstop2h 50m
Tue 9/158:35 am -
1 stop5h 05m
Deal found 8/11![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 10/75:30 am -
1 stop5h 35m
Wed 10/73:00 pm -
1 stop5h 51m
Deal found 8/11![United Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:05 pm -
Nonstop2h 50m
Fri 9/257:10 pm -
Nonstop2h 45m
Deal found 8/10![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 10/2811:45 am -
1 stop6h 09m
Wed 11/411:21 am -
2 stops8h 05m
Deal found 8/11![United Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 10/285:30 am -
2 stops8h 01m
Sat 11/711:20 am -
2 stops9h 31m
Deal found 8/11![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:05 am -
Nonstop3h 00m
Mon 11/97:15 pm -
Nonstop2h 35m
Deal found 8/7![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/155:58 pm -
1 stop5h 26m
Sat 10/177:00 am -
1 stop7h 52m
Deal found 8/11![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Mon 9/2111:34 am -
2 stops10h 28m
Wed 9/237:43 am -
1 stop8h 13m
Deal found 8/10![United Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 8/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:05 am -
1 stop6h 05m
Tue 9/229:05 am -
Nonstop2h 50m
Deal found 8/8![Southwest logo]()
$463
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/89:22 am -
1 stop6h 22m
Sat 9/1212:37 pm -
2 stops8h 07m
Deal found 8/11![United Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:50 pm -
1 stop5h 00m
Sun 11/17:15 pm -
Nonstop2h 35m
Deal found 8/9![Southwest logo]()
$519
Last-minute flights from San Antonio to San DiegoDiscover last-minute flight deals from San Antonio to San Diego. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to San Diego. Data last updated August 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/48:26 pm -
2 stops25h 49m
Mon 9/149:03 pm -
1 stop15h 17m
Deal found 8/11![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:26 pm -
2 stops39h 17m
Mon 9/149:03 pm -
1 stop15h 17m
Deal found 8/11![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:26 pm -
1 stop29h 25m
Sat 9/126:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 8/11. 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.
Wed 9/98:20 pm -
1 stop5h 31m
Wed 9/166:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 8/11. 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.
Thu 9/108:20 pm -
1 stop5h 31m
Mon 9/146:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$164
This Frontier deal was found by Cheapflights users on 8/12. 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 9/118:20 pm -
1 stop5h 31m
Mon 9/146:25 am -
1 stop11h 00m
Deal found 8/12![Frontier logo]()
$200
This Frontier deal was found by Cheapflights users on 8/11. 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.
Sat 9/128:20 pm -
1 stop5h 31m
Mon 9/144:54 pm -
1 stop24h 31m
Deal found 8/11![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/178:20 pm -
1 stop29h 31m
Mon 9/216:25 am -
1 stop11h 00m
Deal found 8/11![Frontier logo]()
$229
This Booking.com deal was found by Cheapflights users on 8/11. 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.
Mon 9/218:20 pm -
1 stop5h 31m
Fri 9/259:03 pm -
1 stop14h 45m
Deal found 8/11![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Mon 9/2112:39 pm -
1 stop9h 38m
Mon 9/289:03 pm -
1 stop15h 17m
Deal found 8/7![Frontier logo]()
$216
One-way flights from San Antonio to San DiegoSearch for one-way flight options from San Antonio to San Diego. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from San Antonio to San Diego. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Super.com deal was found by Cheapflights users on 8/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:20 pm -
1 stop5h 31m
Deal found 8/12![Frontier logo]()
$81
This Frontier deal was found by Cheapflights users on 8/11. 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.
Sat 9/128:20 pm -
1 stop5h 31m
Deal found 8/11![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:16 pm -
1 stop13h 43m
Deal found 8/11![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Tue 9/223:19 pm -
1 stop27h 40m
Deal found 8/8![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Tue 10/63:19 pm -
1 stop27h 40m
Deal found 8/7![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Wed 10/73:19 pm -
1 stop20h 01m
Deal found 8/8![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 8/11. 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.
Wed 9/98:20 pm -
1 stop5h 31m
Deal found 8/11![Frontier logo]()
$116
This Frontier deal was found by Cheapflights users on 8/11. 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 9/118:20 pm -
1 stop5h 31m
Deal found 8/11![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 8/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:20 pm -
1 stop5h 31m
Deal found 8/7![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:20 pm -
1 stop5h 31m
Deal found 8/7![Frontier logo]()
$120
Find flight deals from San Antonio to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $164 (Frontier) |
One-way from | $81 (Super.com) |
Popular in | July |
Cheapest in | October |
Average price | $389 |
Good round-trip deal | $357 or less |
Good one-way deal | $158 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio 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 August 12, 2026.
Use the filters below to find and compare flights from San Antonio to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Fri 9/11
7:05 pm-7:55 pm
Nonstop2h 50m
San Diego
Tue 9/15
8:35 am-3:40 pm
1 stop5h 05m
$262
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 10/7
5:30 am-9:05 am
1 stop5h 35m
San Diego
Wed 10/7
3:00 pm-10:51 pm
1 stop5h 51m
$312
Quickest round-trip
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 9/23
6:05 pm-6:55 pm
Nonstop2h 50m
San Diego
Fri 9/25
7:10 pm-11:55 pm
Nonstop2h 45m
$339
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 10/28
11:45 am-3:54 pm
1 stop6h 09m
San Diego
Wed 11/4
11:21 am-9:26 pm
2 stops8h 05m
$358
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 10/28
5:30 am-11:31 am
2 stops8h 01m
San Diego
Sat 11/7
11:20 am-10:51 pm
2 stops9h 31m
$364
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Fri 11/6
6:05 am-7:05 am
Nonstop3h 00m
San Diego
Mon 11/9
7:15 pm-11:50 pm
Nonstop2h 35m
$387
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Thu 10/15
5:58 pm-9:24 pm
1 stop5h 26m
San Diego
Sat 10/17
7:00 am-4:52 pm
1 stop7h 52m
$387
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Mon 9/21
11:34 am-8:02 pm
2 stops10h 28m
San Diego
Wed 9/23
7:43 am-5:56 pm
1 stop8h 13m
$392
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Tue 9/8
9:22 am-1:44 pm
1 stop6h 22m
San Diego
Sat 9/12
12:37 pm-10:44 pm
2 stops8h 07m
$392
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Fri 9/18
11:05 am-3:10 pm
1 stop6h 05m
San Diego
Tue 9/22
9:05 am-1:55 pm
Nonstop2h 50m
$463
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from San Antonio 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 San Antonio to San Diego in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-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 San Antonio-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 San Antonio to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from San Antonio with our price prediction graph.
SAT-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 San Antonio to San Diego
Prices
More
How far ahead should I book a flight from San Antonio to San Diego?
To ensure you get the cheapest price possible for a flight from San Antonio to San Diego, you should look to book at least 1 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Antonio to San Diego?
Currently, October is the cheapest month in which you can book a flight from San Antonio to San Diego (average of $343). Flying from San Antonio to San Diego in July is currently the most expensive (average of $466). 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 SAT to SAN?
Find hourly flight availability from San Antonio 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 August 12, 2026.
One of the essential ways to save on airfare from San Antonio to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 26% on airfare.
What’s the top layover airport for flights from San Antonio to San Diego?
Share of 1-stop round-trip flights from San Antonio to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 90% of 1-stop itineraries from San Antonio to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to San Diego?
Average round-trip fare for 1-stop flights from San Antonio to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $225.
What’s the fastest layover option from San Antonio to San Diego?
Shortest average travel time for 1-stop one-way flights from San Antonio to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 4h 29m.
Which airport typically offers the quickest layover for flights from San Antonio to San Diego?
Average layover duration for 1-stop one-way flights from San Antonio to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 0h 56m.
The best insider tips for San Antonio to San Diego flights
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Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to San Diego trip
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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 August 12, 2026.
Read through reviews of airlines operating flights from San Antonio to San Diego, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from San Antonio 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
National City
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Coronado
San Ysidro
La Mesa
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Julian
Lemon Grove
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Top 5 airlines flying from San Antonio to San Diego
Discover the top 5 airlines that operate flights from San Antonio 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 August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$251 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$399 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$225 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$231 | Average$395 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$309 | Average$445 | FlexibilityNo cancel fee | On-time63% |