$72+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Apr 14 — Apr 211
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 August, booked 65 days in advance, depart on a Thursday or Friday 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 March 15, 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 March 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/94:36 pm
SAT
- SAN
1 stop16h 45m
Frontier
Thu 4/167:23 pm
SAN
- SAT
2 stops41h 46m
Frontier
Deal found 3/10![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 4/87:45 am
SAT
- SAN
1 stop18h 17m
Frontier
Wed 4/1512:29 pm
SAN
- SAT
2 stops21h 11m
Frontier
Deal found 3/11![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 4/2612:50 pm
SAT
- SAN
2 stops20h 56m
Frontier
Sun 5/36:25 am
SAN
- SAT
1 stop29h 50m
Frontier
Deal found 3/11![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 3/13. 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 5/307:54 pm
SAT
- SAN
1 stop5h 56m
Frontier
Wed 6/39:37 am
SAN
- SAT
1 stop7h 22m
Frontier
Deal found 3/13![Frontier logo]()
$255
This Delta deal was found by Cheapflights users on 3/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:00 am
SAT
- SAN
1 stop6h 33m
Delta
Mon 8/318:50 am
SAN
- SAT
1 stop10h 38m
Delta
Deal found 3/12![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:00 am
SAT
- SAN
1 stop5h 15m
American Airlines
Sun 5/36:30 am
SAN
- SAT
1 stop4h 48m
American Airlines
Deal found 3/11![American Airlines logo]()
$258
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:02 pm
SAT
- SAN
1 stop5h 24m
United Airlines
Sat 4/256:20 am
SAN
- SAT
2 stops7h 26m
United Airlines
Deal found 3/12![United Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:45 am
SAT
- SAN
2 stops26h 36m
Frontier
Sun 4/59:28 pm
SAN
- SAT
1 stop24h 51m
Frontier
Deal found 3/12![Frontier logo]()
$263
This Frontier deal was found by Cheapflights users on 3/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:05 am
SAT
- SAN
1 stop12h 28m
Frontier
Wed 4/112:00 pm
SAN
- SAT
1 stop10h 19m
Frontier
Deal found 3/10![Frontier logo]()
$266
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 March 15, 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 March 15, 2026.
This Delta deal was found by Cheapflights users on 3/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:12 pm
SAT
- SAN
1 stop7h 26m
Delta
Sun 4/266:20 am
SAN
- SAT
1 stop6h 13m
Delta
Deal found 3/12![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 3/15. 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.
Tue 4/146:50 am
SAT
- SAN
1 stop6h 00m
Southwest
Tue 4/216:45 pm
SAN
- SAT
Nonstop2h 35m
Southwest
Deal found 3/15![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/142:14 pm
SAT
- SAN
2 stops9h 16m
United Airlines
Wed 4/1510:23 am
SAN
- SAT
1 stop7h 25m
United Airlines
Deal found 3/10![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 3/11. 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.
Tue 4/216:10 am
SAT
- SAN
Nonstop3h 00m
Southwest
Wed 4/223:05 pm
SAN
- SAT
1 stop6h 25m
Southwest
Deal found 3/11![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:17 pm
SAT
- SAN
2 stops9h 42m
United Airlines
Sun 4/268:37 pm
SAN
- SAT
2 stops10h 05m
United Airlines
Deal found 3/12![United Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/1811:46 am
SAT
- SAN
2 stops10h 26m
United Airlines
Thu 4/238:37 pm
SAN
- SAT
2 stops10h 05m
United Airlines
Deal found 3/11![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 3/11. 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.
Tue 4/146:10 am
SAT
- SAN
Nonstop3h 00m
Southwest
Mon 4/208:45 am
SAN
- SAT
Nonstop2h 45m
Southwest
Deal found 3/11![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/141:25 pm
SAT
- SAN
2 stops8h 47m
United Airlines
Tue 4/217:40 pm
SAN
- SAT
2 stops11h 02m
United Airlines
Deal found 3/15![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 3/10. 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.
Thu 5/145:45 pm
SAT
- SAN
1 stop5h 20m
Southwest
Sat 5/166:45 pm
SAN
- SAT
Nonstop2h 35m
Southwest
Deal found 3/10![Southwest logo]()
$371
This Southwest deal was found by Cheapflights users on 3/10. 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.
Thu 4/97:15 pm
SAT
- SAN
Nonstop3h 00m
Southwest
Thu 4/167:35 pm
SAN
- SAT
Nonstop2h 40m
Southwest
Deal found 3/10![Southwest logo]()
$387
This Southwest deal was found by Cheapflights users on 3/10. 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 6/105:55 pm
SAT
- SAN
1 stop4h 25m
Southwest
Thu 6/118:25 pm
SAN
- SAT
Nonstop2h 45m
Southwest
Deal found 3/10![Southwest logo]()
$401
Last-minute flights from San Antonio to San DiegoDiscover last-minute flight deals from San Antonio to San Diego. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to San Diego. Data last updated March 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:05 am
SAT
- SAN
1 stop12h 28m
Frontier
Wed 4/112:00 pm
SAN
- SAT
1 stop10h 19m
Frontier
Deal found 3/10![Frontier logo]()
$266
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Mon 3/304:17 pm
SAT
- SAN
1 stop5h 48m
United Airlines
Wed 4/13:04 pm
SAN
- SAT
1 stop5h 55m
United Airlines
Deal found 3/11![United Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:45 am
SAT
- SAN
2 stops26h 36m
Frontier
Sun 4/59:28 pm
SAN
- SAT
1 stop24h 51m
Frontier
Deal found 3/12![Frontier logo]()
$263
This Expedia deal was found by Cheapflights users on 3/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:45 am
SAT
- SAN
1 stop15h 41m
Frontier
Wed 4/812:00 pm
SAN
- SAT
1 stop10h 19m
Frontier
Deal found 3/11![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 4/87:45 am
SAT
- SAN
1 stop18h 17m
Frontier
Wed 4/1512:29 pm
SAN
- SAT
2 stops21h 11m
Frontier
Deal found 3/11![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/94:36 pm
SAT
- SAN
1 stop16h 45m
Frontier
Thu 4/167:23 pm
SAN
- SAT
2 stops41h 46m
Frontier
Deal found 3/10![Frontier logo]()
$249
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:02 pm
SAT
- SAN
1 stop5h 24m
United Airlines
Sat 4/256:20 am
SAN
- SAT
2 stops7h 26m
United Airlines
Deal found 3/12![United Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 4/2612:50 pm
SAT
- SAN
2 stops20h 56m
Frontier
Sun 5/36:25 am
SAN
- SAT
1 stop29h 50m
Frontier
Deal found 3/11![Frontier logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:00 am
SAT
- SAN
1 stop5h 15m
American Airlines
Sun 5/36:30 am
SAN
- SAT
1 stop4h 48m
American Airlines
Deal found 3/11![American Airlines logo]()
$258
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 March 15, 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 March 15, 2026.
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:54 pm
SAT
- SAN
1 stop14h 48m
Frontier
Deal found 3/13![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:54 pm
SAT
- SAN
1 stop14h 48m
Frontier
Deal found 3/12![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 5/97:54 pm
SAT
- SAN
1 stop14h 48m
Frontier
Deal found 3/13![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/144:04 pm
SAT
- SAN
1 stop9h 02m
Frontier
Deal found 3/13![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Mon 4/136:45 am
SAT
- SAN
1 stop19h 17m
Frontier
Deal found 3/11![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/116:45 am
SAT
- SAN
1 stop19h 17m
Frontier
Deal found 3/15![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 5/107:54 pm
SAT
- SAN
1 stop14h 48m
Frontier
Deal found 3/13![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/12. 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 5/87:54 pm
SAT
- SAN
1 stop5h 56m
Frontier
Deal found 3/12![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 3/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:45 am
SAT
- SAN
1 stop9h 51m
Frontier
Deal found 3/10![Frontier logo]()
$106
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 March 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $249 (Kiwi.com) |
One-way from | $72 (Trip.com) |
Popular in | November |
Cheapest in | October |
Average price | $434 |
Good round-trip deal | $398 or less |
Good one-way deal | $177 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 March 15, 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
SATSAN
San Antonio
Fri 4/17
6:12 pm-11:38 pm
1 stop7h 26m
San Diego
Sun 4/26
6:20 am-2:33 pm
1 stop6h 13m
$277
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Tue 4/14
6:50 am-10:50 am
1 stop6h 00m
San Diego
Tue 4/21
6:45 pm-11:20 pm
Nonstop2h 35m
$315
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Tue 4/21
6:10 am-7:10 am
Nonstop3h 00m
San Diego
Wed 4/22
3:05 pm-11:30 pm
1 stop6h 25m
$325
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Tue 4/14
2:14 pm-9:30 pm
2 stops9h 16m
San Diego
Wed 4/15
10:23 am-7:48 pm
1 stop7h 25m
$342
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Fri 4/17
4:17 pm-11:59 pm
2 stops9h 42m
San Diego
Sun 4/26
8:37 pm-8:42 am
2 stops10h 05m
$347
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Sat 4/18
11:46 am-8:12 pm
2 stops10h 26m
San Diego
Thu 4/23
8:37 pm-8:42 am
2 stops10h 05m
$347
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Tue 4/14
6:10 am-7:10 am
Nonstop3h 00m
San Diego
Mon 4/20
8:45 am-1:30 pm
Nonstop2h 45m
$351
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Tue 4/14
1:25 pm-8:12 pm
2 stops8h 47m
San Diego
Tue 4/21
7:40 pm-8:42 am
2 stops11h 02m
$368
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Thu 5/14
5:45 pm-9:05 pm
1 stop5h 20m
San Diego
Sat 5/16
6:45 pm-11:20 pm
Nonstop2h 35m
$371
Quickest round-trip
San AntonioSan Diego
SAT - SAN
SATSAN
San Antonio
Thu 4/9
7:15 pm-8:15 pm
Nonstop3h 00m
San Diego
Thu 4/16
7:35 pm-12:15 am
Nonstop2h 40m
$387
Showing 1-10 of 23 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 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?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to San Diego. Price data was last updated on March 13, 2026.
To ensure you get the cheapest price possible for a flight from San Antonio to San Diego, you should look to book at least 65 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, December is the cheapest month in which you can book a flight from San Antonio to San Diego (average of $70). Flying from San Antonio to San Diego in July is currently the most expensive (average of $132). 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 March 15, 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 at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 11% 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 50% 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.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $253.
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
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to San Diego trip
Our travel experts
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 March 15, 2026.
Read through reviews of airlines operating flights from San Antonio to San Diego, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
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
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove
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Top 7 airlines flying from San Antonio to San Diego
Discover the top 7 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 March 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$181 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$126 | Average$246 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$206 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$399 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$218 | Average$403 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$442 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$327 | Average$438 | FlexibilityNo cancel fee | On-time75% |