Cheap flights from San Antonio, TX to San Diego, CA

Flights starting at $76. Choose between Linear Air, United Airlines, or American Airlines to find the best price.

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San Antonio SATLas Vegas LASSan Antonio SAT

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$120
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San Antonio SATLas Vegas LASSan Antonio SAT

Multiple carriers

$145

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Travelers usually depart from San Antonio International, San Antonio, San Antonio, TX Train Station, San Antonio-Patton Tareyton Tempo, or San Antonio-Pearl when they travel from San Antonio to San Diego. Book your trip to arrive at San Diego International, San Diego, CA Bus Station, San Diego, CA - Old Town, McClellan–Palomar, or San Diego, CA - La Jolla. The most popular airlines for this route are Linear Air, United Airlines, American Airlines, Frontier Airlines, and Spirit Airlines. San Antonio and San Diego have 401 direct flights per week.

Check-in for a flight from San Antonio to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Linear Air O2YesNo
United AirlinesUALUAYesNo
American AirlinesAALAAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

United States COVID-19 travel restrictions

Latest COVID-19 travel restrictions in United States – 12/2022
Your trip summary

Most travelers from San Antonio, SAT can enter San Diego, SAN.

Departure

Travel restrictions
  • Travel is allowed
  • Proof of a negative pre-departure COVID-19 test result is not required
  • Quarantine is not required

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

What are the most popular routes to and from San Antonio?
Travelers frequently search for route combinations, such as San Antonio and Las Vegas, Mexico City, Denver, Orlando, Guadalajara, Atlanta, Phoenix, Los Angeles, Washington, D.C., Cancún, Chicago, Raleigh, Salt Lake City, San José del Cabo, Philadelphia, New Orleans, San Juan, Paris, New York, Monterrey.
What are the most popular routes to and from San Diego?
Travelers frequently search for route combinations, such as San Diego and Denver, Las Vegas, Austin, Cincinnati, Philadelphia, New York, Phoenix, Charlotte, Washington, D.C., Atlanta, Raleigh, Chicago, Orlando, Detroit, Dallas, St. Louis, Cleveland, Salt Lake City, Minneapolis, London.
What airports are near San Antonio?
The main airport in San Antonio is San Antonio International. It is also served by Austin–Bergstrom International, San Antonio International, Laredo International, Piedras Negras International, Corpus Christi International, Nuevo Laredo International, Del Rio International, Victoria Regional, Easterwood, Killeen–Fort Hood Regional.
What airports are near San Diego?
The main airport in San Diego is San Diego International. It is also served by Tijuana International, Ontario International, John Wayne, Hollywood Burbank, Mexicali International, Palm Springs International, Imperial County, Long Beach, Hawthorne Municipal, Yuma International.
What buses and trains depart from San Antonio?
A number of bus and train companies depart from San Antonio, including Amtrak train, Greyhound.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Antonio and San Diego?
Yes, it's possible to combine different modes of transport between San Antonio and San Diego thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between San Antonio and San Diego can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.
Which airlines fly between San Antonio and San Diego?
Currently, you can fly between San Antonio and San Diego with Linear Air, United Airlines, American Airlines, Frontier Airlines, Spirit Airlines.
When's the best time to travel between San Antonio and San Diego?
If you don’t have specific dates for your trip between San Antonio and San Diego, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between San Antonio and San Diego?
How many airports are there near San Antonio?
How many airports are there near San Diego?
Is it possible to reach San Antonio by bus or train?
What time do nonstop (direct) flights between San Antonio and San Diego depart?
What time do nonstop (direct) flights between San Antonio and San Diego arrive?
What time do flights between San Antonio and San Diego depart?
What time do flights between San Antonio and San Diego arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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