Cheap Flights from San Diego, CA to San Antonio, TX from $46

On Cheapflightsplus.com you will find 382 connecting flights from San Diego to San Antonio. You can compare airfare deals from 7 airlines and multiple travel sites from $46, book and save on cheap plane tickets and last minute offers. Also check out SAN-SAT flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from San Diego to San Antonio depends on and how to choose the most interesting flight option for you.

Distance between San Diego and San Antonio is 1814 miles. Time difference between the cities is 2h. Airplanes depart 06:15 to 23:00 from 11 San Diego airport and arrive 06:15 to 23:00 to 5 San Antonio airports. Average flight time is 10h 10m.

  • The fastest flight 5h 13m
  • Average flight time 10h 10m
  • The earliest flight 06:15
  • The latest flight 23:00
  • Distance 1128 ml

The cheapest months to travel to San Antonio are june (from 46 $), may (from 58 $), august (from 97 $).

The most expensive months are january (from 403 $), november (from 399 $), december (from 332 $).

What is the lowest airfare San Diego to San Antonio?

The cheapest plane ticket found by our users is $46. This airfare is for economy class on one-way NK2296 flight by Spirit Airlines for July 6, 2025 which leaves San Diego in San Diego at 19:31 am and arrives at San Antonio San Antonio at 05:00.

Economy class
$46
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Business class
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First class
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Flight Schedule San Diego (California) to San Antonio (Texas)

06:15 — 05:00+1day
20h 45m flight time
Find flight
from$111
06:15 — 07:35 San Diego — Las Vegas
NK2369 Spirit Airlines
16h 53m stop
00:33 — 05:04 Las Vegas — San Antonio
NK2705 Spirit Airlines
06:15 — 10:47+1day
26h 32m flight time
Find flight
from$116
06:15 — 07:35 San Diego — Las Vegas
NK2369 Spirit Airlines
22h 35m stop
06:10 — 10:47 Las Vegas — San Antonio
NK2180 Spirit Airlines
06:25 — 18:02
9h 37m flight time
Find flight
from$97
06:41 — 10:12 San Diego — Denver
F92818 Frontier Airlines
4h 43m stop
15:20 — 18:36 Denver — San Antonio
F92098 Frontier Airlines
06:25 — 14:00
5h 35m flight time
Find flight
from$98
06:25 — 10:02 San Diego — Denver
F92818 Frontier Airlines
41m stop
10:43 — 14:00 Denver — San Antonio
F92356 Frontier Airlines
10:50 — 18:36
5h 46m flight time
Find flight
from$99
10:50 — 14:20 San Diego — Denver
F94928 Frontier Airlines
1h stop
15:20 — 18:36 Denver — San Antonio
F92098 Frontier Airlines
12:51 — 13:23+1day
22h 32m flight time
Find flight
from$118
12:51 — 14:23 San Diego — Las Vegas
F91466 Frontier Airlines
18h 17m stop
08:40 — 13:23 Las Vegas — San Antonio
F93418 Frontier Airlines
15:10 — 05:04+1day
11h 54m flight time
Find flight
from$119
15:10 — 16:33 San Diego — Las Vegas
NK3792 Spirit Airlines
7h 57m stop
00:30 — 05:04 Las Vegas — San Antonio
NK1058 Spirit Airlines
17:43 — 10:47+1day
15h 4m flight time
Find flight
from$116
17:43 — 19:01 San Diego — Las Vegas
NK2507 Spirit Airlines
11h 9m stop
06:10 — 10:47 Las Vegas — San Antonio
NK2180 Spirit Airlines
17:50 — 05:00+1day
9h 10m flight time
Find flight
from$46
17:43 — 19:01 San Diego — Las Vegas
NK2507 Spirit Airlines
5h 19m stop
00:33 — 05:04 Las Vegas — San Antonio
NK2705 Spirit Airlines
18:58 — 10:47+1day
13h 49m flight time
Find flight
from$46
18:58 — 20:17 San Diego — Las Vegas
NK2296 Spirit Airlines
9h 53m stop
06:10 — 10:47 Las Vegas — San Antonio
NK2180 Spirit Airlines
19:06 — 13:03+1day
15h 57m flight time
Find flight
from$102
19:16 — 20:43 San Diego — Las Vegas
F91326 Frontier Airlines
11h 40m stop
08:40 — 13:23 Las Vegas — San Antonio
F93418 Frontier Airlines
19:31 — 05:00+1day
7h 29m flight time
Find flight
from$46
18:58 — 20:17 San Diego — Las Vegas
NK2296 Spirit Airlines
3h 41m stop
00:33 — 05:04 Las Vegas — San Antonio
NK2705 Spirit Airlines
20:37 — 18:02+1day
19h 25m flight time
Find flight
from$113
19:19 — 23:00 San Diego — Denver
F94990 Frontier Airlines
14h 24m stop
15:20 — 18:36 Denver — San Antonio
F92098 Frontier Airlines
20:48 — 05:04+1day
6h 16m flight time
Find flight
from$46
20:48 — 22:07 San Diego — Las Vegas
NK2021 Spirit Airlines
2h 26m stop
00:33 — 05:04 Las Vegas — San Antonio
NK2705 Spirit Airlines
20:48 — 10:47+1day
11h 59m flight time
Find flight
from$46
20:48 — 22:07 San Diego — Las Vegas
NK2021 Spirit Airlines
8h 3m stop
06:10 — 10:47 Las Vegas — San Antonio
NK2180 Spirit Airlines
Full flight schedule will help you in detecting at what time planes fly from San Diego to San Antonio. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 19, 2025.

Popular Airlines on the Route

The flight San Diego — San Antonio is served by 7 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 130 departures per week at the price of from $ 167 . And the most expensive tickets are offered by United Airlines airline - from $ 6143.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 382 flights with layovers on the route. The fastest connecting flight is AS4320 by Alaska Airlines takes 5h 13m and the cheapest is NK2296 by Spirit Airlines for $46.

  • AS - Alaska Airlines
    from $167
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  • F9 - Frontier Airlines
    from $97
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  • SY - Sun Country Airlines
    from $168
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  • HA - Hawaiian Airlines
    from $182
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  • UA - United Airlines
    from $195
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  • NK - Spirit Airlines
    from $46
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  • G4 - Allegiant Air
    from $169
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See more connecting flights

Airports

You can fly from San Diego to San Antonio from 11 airports (San Diego, San Diego Regional, Gillespie Field, Golden Triangle Reg., El Cajon, Lowndes County, Miramar NAS, Montgomery Field, North Island NAS, Brown Field Municipal, AFB).

San Diego airports

  • San Diego-SAN
    from $46
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  • San Diego Regional-USA
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  • Gillespie Field-SEE
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  • Golden Triangle Reg.-GTR
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  • El Cajon-CJN
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  • Lowndes County-UBS
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  • Miramar NAS-NKX
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  • Montgomery Field-MYF
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  • North Island NAS-NZY
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  • Brown Field Municipal-SDM
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  • AFB-CBM
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San Antonio airports

  • Randolph AFB-RND
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  • Martindale AAF-MDA
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  • San Antonio-SAT
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  • Kelly AFB-SKF
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  • Stinson Municipal-SSF
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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