Both taxis and private transfers will get you from SAT to downtown San Antonio in about the same time. The question is which one suits your specific trip better.
Taxis at SAT
Taxis line up at the curb on the lower level of both terminals. You walk out, get in the next available car, and the meter runs. A ride to the River Walk area costs USD 25-35. No booking required, no app needed. The process is simple and immediate.
San Antonio taxi drivers are generally familiar with downtown hotels, but the River Walk area has some tricky access points — certain hotels are only reachable from specific streets, and some have separate rideshare/taxi drop-off zones from the main entrance. A driver who knows the area well will navigate this smoothly. One who does not might drop you at the wrong entrance, leaving you walking with luggage.
Taxis do not carry child seats. The vehicle is whatever is next in the queue — usually a standard sedan. Card payment is accepted but always worth confirming before the trip starts.
Private Transfers
A pre-booked sedan transfer runs USD 40-60 to downtown — about USD 15-25 more than a taxi. For that difference, you get flight monitoring, a guaranteed vehicle, the ability to specify vehicle type and request child seats, and a driver who knows your exact destination before you land.
The fixed pricing is particularly valuable during Fiesta and convention weeks, when the general chaos around downtown makes everything more unpredictable. Your transfer price stays the same whether traffic adds 5 minutes or 20.
For destinations outside downtown — SeaWorld, Six Flags, the Hill Country — a transfer company is accustomed to these routes and the price is agreed in advance. Taking a metered taxi to SeaWorld will work but the meter keeps running through any traffic, and the final fare is a surprise.
Where Rideshare Fits
Uber and Lyft are the most popular option at SAT. Prices (USD 15-28 to downtown) undercut both taxis and transfers during normal periods. The trade-off is surge pricing during events and the occasional wait for a driver. Rideshare does not provide child seats.
Making the Call
Taxi makes sense when you are traveling light, heading to a well-known downtown address, arriving during normal hours, and want immediate departure without pre-planning. Private transfer makes sense when you have children who need car seats, are traveling as a group and need a larger vehicle, are heading to a destination the driver needs to know in advance, arriving during Fiesta or a major event, or landing late at night.
The River Walk Complication
The River Walk area deserves a specific mention. Many hotels along the River Walk have convoluted vehicle access — underground drop-offs, one-way approaches, and separate entrances for taxis versus guests. A transfer driver who has been given your exact hotel name and confirmed the drop-off point in advance will handle this more smoothly than a taxi driver encountering the address for the first time. This is a small thing, but after a long flight with luggage and possibly children, it matters.
Bottom Line
For a straightforward trip to a well-known downtown hotel, a taxi is fine and saves money. For anything more complex — families, groups, events, distant destinations, or specific River Walk hotels — the private transfer premium is modest and the convenience is real.