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

Airlines that fly from San Antonio International Airport (SAT) to San Diego Intl. Airport (SAN)

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Delta
Alaska Airlines
Delta
United
United
Delta
Alaska Airlines
American Airlines
Alaska Airlines
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.
Flight from San Antonio to San Diego route information
Origin airport
San Antonio Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$563
Distance
1804 km
Average flight time
1 hour 2 mins

Your quick guide to flights from San Antonio to San Diego

Pick up great flights from San Antonio to San Diego

With Expedia, you have your pick of 2 flights a day with 20 airlines covering flights from San Antonio to San Diego. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from San Antonio to San Diego that take around 0 hours.

Find cheap flights from San Antonio to San Diego

From the great flight deals with prices currently ranging from AU$563 to AU$644, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from San Antonio to San Diego around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to San Diego is normally in January.

Reasons to book your flight from San Antonio to San Diego with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from San Antonio to San Diego across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to San Diego right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from SAT to San Diego Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from San Antonio Intl. Airport (SAT) to SAN was AU$563. Cheap fares don’t hang around, 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 Antonio Intl. Airport (SAT) to San Diego Intl. Airport (SAN)?
Most flights can be cancelled online, but each airline has its own set of terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from SAT to San Diego Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for San Antonio Intl. Airport (SAT) to San Diego Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from San Antonio Airport to SAN?
It’s around 1 800 kilometres from San Antonio Airport to San Diego Intl. Airport (SAN), so expect to be flying for a while. Keep yourself entertained by packing things like playing cards (if you’re travelling with friends) or a good old-fashioned book.
Which airlines fly direct from San Antonio Intl. Airport (SAT) to SAN?
Flying directly from San Antonio Intl. Airport (SAT) to San Diego Intl. Airport (SAN) is a breeze with Southwest Airlines (WN). This leading carrier operates 30 flights every month.
Are SAT to SAN flight tickets cheaper when they're purchased at the last minute?
Flight tickets from San Antonio Airport to SAN are available up to 12 months before departure on Expedia. And although you may occasionally pick up a great last-minute deal, it’s not something you should count on. Also, booking your flights well in advance means you’ll have more options — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to bring you the best bargains, so keep checking in for all the latest specials.
*Available to Expedia members.