CA $125 Cheap Flights from San Diego (SAN) to San Antonio (SAT)

View CA $125 flight on Mon, Sep. 8, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to San Antonio International Airport (SAT)

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Cheap flights from San Diego (SAN) to San Antonio (SAT)

Prices were available within the past 7 days and start at CA $125 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from San Diego (SAN) to San Antonio (SAT)

September is typically the cheapest month to fly

From CA $115 - CA $289 per traveller.

Graph displaying average flight prices per month

Flight from San Diego to San Antonio (SAN - SAT) route information
Origin airport
San Diego Intl.
Destination airport
San Antonio Intl.
Distance
1804 km
Average flight time
5 hours 8 mins

San Diego to San Antonio Flights

The easy way to book your flights from San Diego to San Antonio 

With Expedia, it’s simple to find and book flights to San Antonio from San Diego whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are Southwest Airlines nonstop flights to San Antonio Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from San Diego to San Antonio today, tomorrow, or this week.  

 

Save dollars with cheap flights from San Diego Intl., SAN to San Antonio Intl., SAT 

Sort your search results by price to find great deals on your flight from San Diego to San Antonio—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Antonio from San Diego currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to San Antonio  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to San Antonio from San Diego 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Antonio with Expedia today.

Frequently asked questions

How much is a flight from San Diego Intl. Airport (SAN) to San Antonio Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between SAN and SAT was . Fares this good don't stick around for long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SAN to SAT?
This differs between air carriers, as each has its own terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from San Diego Airport to San Antonio Intl. Airport (SAT) that have flexible change policies?
Flights from San Diego Intl. Airport (SAN) to San Antonio Airport offering flexible change policies are available from several carriers. Simply use our "No change fees" filter while searching. You'll only need to cover the cost difference between flights, without any additional fees to worry about.
How many hours is the flight from San Diego Intl. Airport (SAN) to SAT?
It only takes about 5 hours and 59 minutes to journey from SAN to San Antonio Intl. Airport (SAT) — just enough time for a quick snooze. You'll be landing in San Antonio by the time you wake up.
How far is the flight from SAN to SAT?
The flight distance between San Diego Airport (SAN) and SAT (SAT) is 1,800 kilometres. Close your eyes or read a good book and the journey will zip by.
Which airlines fly direct from San Diego Airport to SAT?
Operating 43 monthly flights, Southwest Airlines (WN) is a top choice when flying directly from San Diego Intl. Airport (SAN) to San Antonio Intl. Airport (SAT).
Are San Diego Intl. Airport (SAN) to San Antonio Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some super cheap airfares from San Diego Intl. Airport (SAN) to San Antonio Airport emerging a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices so far in advance.

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