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.

Find One-Way and Round-Trip San Diego to San Antonio Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $46 (one-way), $79 (round-trip).
Direct flights
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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 Arrival Flight Details Flight Duration Price
06:15 — 05:00
+1 day
06:15 — 07:35 NK2369 Spirit Airlines
San Diego — Las Vegas
16h 53m stop
00:33 — 05:04 NK2705 Spirit Airlines
Las Vegas — San Antonio
20h 45m
including layover
Find flight
from$111
06:15 — 10:47
+1 day
06:15 — 07:35 NK2369 Spirit Airlines
San Diego — Las Vegas
22h 35m stop
06:10 — 10:47 NK2180 Spirit Airlines
Las Vegas — San Antonio
26h 32m
including layover
Find flight
from$115
06:25 — 14:00
06:25 — 10:02 F92818 Frontier Airlines
San Diego — Denver
41m stop
10:43 — 14:00 F92356 Frontier Airlines
Denver — San Antonio
5h 35m
including layover
Find flight
from$97
06:25 — 18:02
06:41 — 10:12 F92818 Frontier Airlines
San Diego — Denver
4h 43m stop
15:20 — 18:36 F92098 Frontier Airlines
Denver — San Antonio
9h 37m
including layover
Find flight
from$97
10:50 — 18:36
10:50 — 14:20 F94928 Frontier Airlines
San Diego — Denver
1h stop
15:20 — 18:36 F92098 Frontier Airlines
Denver — San Antonio
5h 46m
including layover
Find flight
from$99
12:51 — 13:23
+1 day
12:51 — 14:23 F91466 Frontier Airlines
San Diego — Las Vegas
18h 17m stop
08:40 — 13:23 F93418 Frontier Airlines
Las Vegas — San Antonio
22h 32m
including layover
Find flight
from$118
15:10 — 05:04
+1 day
15:10 — 16:33 NK3792 Spirit Airlines
San Diego — Las Vegas
7h 57m stop
00:30 — 05:04 NK1058 Spirit Airlines
Las Vegas — San Antonio
11h 54m
including layover
Find flight
from$120
17:43 — 10:47
+1 day
17:43 — 19:01 NK2507 Spirit Airlines
San Diego — Las Vegas
11h 9m stop
06:10 — 10:47 NK2180 Spirit Airlines
Las Vegas — San Antonio
15h 4m
including layover
Find flight
from$115
17:50 — 05:00
+1 day
17:43 — 19:01 NK2507 Spirit Airlines
San Diego — Las Vegas
5h 19m stop
00:33 — 05:04 NK2705 Spirit Airlines
Las Vegas — San Antonio
9h 10m
including layover
Find flight
from$46
18:58 — 10:47
+1 day
18:58 — 20:17 NK2296 Spirit Airlines
San Diego — Las Vegas
9h 53m stop
06:10 — 10:47 NK2180 Spirit Airlines
Las Vegas — San Antonio
13h 49m
including layover
Find flight
from$46
19:06 — 13:03
+1 day
19:16 — 20:43 F91326 Frontier Airlines
San Diego — Las Vegas
11h 40m stop
08:40 — 13:23 F93418 Frontier Airlines
Las Vegas — San Antonio
15h 57m
including layover
Find flight
from$101
19:31 — 05:00
+1 day
18:58 — 20:17 NK2296 Spirit Airlines
San Diego — Las Vegas
3h 41m stop
00:33 — 05:04 NK2705 Spirit Airlines
Las Vegas — San Antonio
7h 29m
including layover
Find flight
from$46
20:37 — 18:02
+1 day
19:19 — 23:00 F94990 Frontier Airlines
San Diego — Denver
14h 24m stop
15:20 — 18:36 F92098 Frontier Airlines
Denver — San Antonio
19h 25m
including layover
Find flight
from$113
20:48 — 05:04
+1 day
20:48 — 22:07 NK2021 Spirit Airlines
San Diego — Las Vegas
2h 26m stop
00:33 — 05:04 NK2705 Spirit Airlines
Las Vegas — San Antonio
6h 16m
including layover
Find flight
from$46
20:48 — 10:47
+1 day
20:48 — 22:07 NK2021 Spirit Airlines
San Diego — Las Vegas
8h 3m stop
06:10 — 10:47 NK2180 Spirit Airlines
Las Vegas — San Antonio
11h 59m
including layover
Find flight
from$46
*Departure and arrival times - local. Updated on September 16, 2025

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 $), september (from 97 $).

The most expensive months are january (from 400 $), november (from 397 $), december (from 330 $).

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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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 $ 166 . And the most expensive tickets are offered by United Airlines airline - from $ 6109.

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 $166
    Find
  • F9 - Frontier Airlines
    from $97
    Find
  • SY - Sun Country Airlines
    from $167
    Find
  • HA - Hawaiian Airlines
    from $181
    Find
  • UA - United Airlines
    from $194
    Find
  • NK - Spirit Airlines
    from $46
    Find
  • G4 - Allegiant Air
    from $168
    Find
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
    Find
  • 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
    Find
  • Brown Field Municipal-SDM
    Find
  • AFB-CBM
    Find

San Antonio airports

  • Randolph AFB-RND
    Find
  • Martindale AAF-MDA
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  • San Antonio-SAT
    Find
  • Kelly AFB-SKF
    Find
  • Stinson Municipal-SSF
    Find

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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