$104 Cheap Flights from San Francisco (SFO) to San Antonio (SAT)

Popular airlines from San Francisco Intl. Airport (SFO) to San Antonio International Airport (SAT)

Find available prices by choosing your travel dates.

Cheap Flights from San Francisco to San Antonio (SFO-SAT)

Prices were available within the past 7 days and start at $104 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Southwest Airlines
Alaska Airlines
Frontier Airlines
Frontier Airlines
Delta
Frontier Airlines
Frontier Airlines
Frontier Airlines
United
Flights from San Francisco (SFO) to San Antonio (SAT)
Origin airport
San Francisco Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$156
Distance
1480 mi

San Francisco to San Antonio Flights

The cheapest times to fly from San Francisco to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to San Antonio are during the month of June. You can find some of the cheapest flights from San Francisco to San Antonio with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Francisco to San Antonio

Sunday is one of the best days to book for cheap flights from San Francisco to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Francisco to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from SFO to San Antonio Intl. Airport (SAT)?
Purchase your ticket with United Airlines and you’ll be cruising the skies for around 3 hours and 42 minutes. This reputable airline has a direct flight that sets off at 10:35AM from San Francisco Airport and gets to SAT at 4:17PM. Expedia has some incredible flight deals, so find out what’s on offer on this route today.
Is it cheaper to buy a plane ticket from San Francisco Airport to San Antonio Airport last minute?
When it’s time to book your flights, it’s better to be prepared. While you could find a deal on a SFO to San Antonio Intl. Airport (SAT) flight at the last minute, tickets usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international journeys it’s between three and four months.
What airports do you fly into for San Antonio from San Francisco?
San Francisco to San Antonio flights land at San Antonio Intl. Airport (SAT). Check in to your hotel and then head out to visit some of the city’s favorite attractions, such as San Antonio Zoo and Aquarium and Frost Bank Center. The airport is around 7 mi north of downtown San Antonio.
What are the most popular departure times for flights from San Francisco Airport to San Antonio Intl. Airport (SAT)?
Between 10:00 AM - 11:00 AM is the busiest period for United Airlines flights departing San Francisco Intl. Airport (SFO) to SAT. Our recommendation? Get up and away earlier in the day. With air traffic yet to build up around airports, your odds of jumping on a delay-free flight are better.
Can I change the date of my flight from San Francisco Airport to San Antonio Airport?
Plans don’t always work out, so Expedia is here to help make things easier. To start, find your San Francisco Airport to SAT itinerary through the Expedia Trips portal and read the fare conditions and rules about what changes you can make. If you booked your plane ticket in the last 24 hours, some carriers will let you cancel for free and organize new flights. If you booked more than 24 hours ago, get in touch with us via our Customer Service portal to learn more about your options.

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*Available to One Key members.