Air San Antonio International Airport (SAT) is located in Uptown San Antonio, about north of Downtown. San Antonio International Airport is the
6th busiest airport based on passenger boardings in Texas and 42nd in the United States as of 2025. It has two terminals and is served by 20 airlines, 15 passenger and 5 cargo ones, serving many destinations throughout the United States and Mexico.
Stinson Municipal Airport is a reliever airport located south of Downtown San Antonio. The airport has two runways serving primarily
general aviation and is also home to the
Texas Air Museum.
Mass transit A bus system is provided by the city's metropolitan transit authority,
VIA Metropolitan Transit. VIA began operating a
bus rapid transit line known as
VIA Primo in December 2012, which connects
Downtown San Antonio to the
South Texas Medical Center, the main campus of the
University of Texas at San Antonio, and the independent enclave city of
Leon Valley. Additionally, VIA also offers VIAtrans
Paratransit Service, a wheelchair accessible ride-share service for people with disabilities. In August 2010, VIA Metropolitan Transit unveiled buses that are powered by diesel-electric hybrid technology. This includes express service from Downtown to park and ride locations in the south, west, northwest, north central and northeast sides of the city, with service to major locations such as
UTSA, Six Flags Fiesta Texas and
SeaWorld. VIA also offers a special service to city events including
Spurs games and city parades from its park and ride locations.
Rail San Antonio is served by two
Amtrak routes: the daily Chicago to San Antonio
Texas Eagle and the thrice-weekly New Orleans to Los Angeles
Sunset Limited. On the days that the
Sunset Limited operates, a section of the
Texas Eagle continues west with it, offering Chicago to Los Angeles through service. The
old Sunset Station is now an entertainment venue owned by VIA and neighbored by the current station and the
Alamodome. San Antonio became the largest American city without an intra-city rail system when
Phoenix, the former largest city without such a system,
procured one in 2008. A proposed passenger rail line, Lone Star Rail, would have linked San Antonio to Austin, but was cancelled in 2016 after 19 years of planning.
Road San Antonio is served by these major freeways: •
I-10: McDermott Freeway (Northwest) runs west toward
El Paso,
Phoenix and
Los Angeles. Jose Lopez Freeway (East) runs east toward
Seguin,
Houston,
New Orleans and
Jacksonville. •
I-35: Pan Am Expressway (Northeast/Southwest)—runs south toward its southern terminus
Laredo and runs north toward
Austin,
Dallas–Fort Worth,
Oklahoma City,
Wichita,
Kansas City,
Des Moines,
Minneapolis-St. Paul, and finally to its northern terminus in
Duluth. •
I-37: Lucian Adams Freeway (Southeast)—runs from San Antonio through its interchange with
US 281 south (
Edinburg and
McAllen) near
Three Rivers and into
Corpus Christi through its junction with
I-69E/
US 77 south (
Kingsville,
Harlingen and
Brownsville) to its southern terminus at Corpus Christi Bay. •
I-410: Connally Loop—simply called Loop 410 (four-ten) by locals is a inner beltway around the city. •
US 90: Cleto Rodriguez Freeway (West) through
Uvalde and
Del Rio to its western terminus at I-10 in
Van Horn. Prior to I-10 East and US 90 West expressway being built US 90 traveled through the west side via West Commerce Street (westbound) and Buena Vista Street (eastbound) and Historic Old Highway 90 (known as Enrique M. Barrera Parkway from 2015 to 2022). On the east side it traveled along East Commerce Street to its current alignment which runs concurrent with I-10 East to
Seguin. •
US 281: McAllister Freeway (North) to
Johnson City and
Wichita Falls. Southbound, it runs
concurrent with I-37, then I-410 for , then heads south to
Pleasanton. Prior to I-37 and the McAllister Freeway. being built US 281 traveled through the north side via San Pedro Avenue and the south side via Roosevelt Avenue. •
SH 151: Stotzer Freeway runs from US 90 west through Westover Hills which includes
SeaWorld to its western terminus at State Loop 1604. •
Loop 1604: Charles W. Anderson Loop—simply called 1604 (sixteen-oh-four) by locals—is a outer beltway around San Antonio. Other highways include: •
US 87: Southbound to
Victoria along Roland Avenue then Rigsby Avenue. It runs concurrent with I-10 for where it goes to
San Angelo northbound. •
US 181: Starts south of I-410/I-37/US 281 interchange and heads toward
Corpus Christi via
Beeville. Prior to I-37 being built, US 181 traveled along Presa Street from Downtown to its current alignment. •
SH 16: From
Zapata, it runs concurrent with I-410 for along southwest San Antonio, over to Bandera Road to
Bandera •
SH 130: Starting at its southern terminus at I-35 South, it travels along East South Loop 410 until I-10/US-90, where it runs concurrently with the interstate until outside of
Seguin, turning into a state toll road. •
SH Spur 421: Also known more commonly as "Culebra Road" and "Bandera Road" inside Loop 410. •
SH Spur 422: Known as the Poteet Jourdanton Freeway. It was originally planned to have a high speed direct connection to I-35. •
Loop 345: Fredericksburg Road by locals; is the business loop for I-10 West/US-87 North. •
Loop 368: Broadway and Austin Highway by locals; is the business loop for I-35 North. •
State PA 1502 (Wurzbach Parkway): Limited-access, high speed road parallel to north IH-410. It has connections to I-35 (via O'Connor Road) and I-10 (via Wurzbach Road) across the north side of town. •
Loop 353: Nogalitos Street and New Laredo Highway is the business loop for I-35 South. •
Loop 13: Is the city's inner loop on the south side serving
Lackland AFB,
Port San Antonio, South Park Mall and
Brooks CityBase traveling along Military Drive on the south side and WW White Road on the east side to its junction with I-35/I-410. The northern arc of the loop is now I-410. Along with
FM 471,
FM 1957, and
SH 211 Also, the city has multiple streets with the same (or similar) names. As examples: • "Military Drive", "Military Highway.", and "Military Drive West"—Military Drive loops around the western and southern parts of the city. Military Highway, also called "NW Military Drive" by the locals, serves the northwestern part of the city. Military Drive West serves the far western portion of the city. None intersect each other. • "Wurzbach Road", "Wurzbach Parkway", and "Harry Wurzbach Road"—Wurzbach Road serves the northwestern part of the city. Wurzbach Parkway, an expressway, is an east–west road serving the northwestern and northeastern parts of the city (and can be considered an extension of Wurzbach Road). Harry Wurzbach Road runs past Fort Sam Houston and Terrell Hills on the city's northeast side, and it does not intersect Wurzbach Road or Wurzbach Parkway. • "Hausman Road" and "South Hausman Road" are two roads serving
Helotes and the far northwest side of the city. Hausman is a major road, and a route used by locals of Helotes and NW San Antonio as an alternative to Loop 1604 connecting to I-10. South Hausman is a suburban road that does not connect with Hausman (despite its name). A large portion of trade between Mexico and the United States passes through the San Antonio area's interstate highway system. Of the five largest cities in Texas, San Antonio (within city limits) is the largest city in the state without toll roads. (Houston, Dallas, Austin, and Fort Worth have toll roads.) San Antonio enjoys less traffic congestion than other large Texas cities. In a 2022 study by TomTom, San Antonio is only the 41st-most congested city in the U.S. and the fifth-most congested city in Texas. By comparison, Houston, McAllen, Austin, and Dallas-Fort Worth rank higher than San Antonio for traffic congestion.
Bicycle paths San Antonio has about of bike lanes, routes or off-road paths. Off-road trails travel along the
San Antonio River, linear greenways, or city parks. Although largely disconnected, the progress to create a bicycle-friendly environment was recognized when San Antonio was designated a bronze-level "Bicycle Friendly Community" in 2015 by the League of American Bicyclists.
Bicycle sharing A bike sharing service was approved by the city council on June 17, 2010. The initial program consisted of 140 bikes at 14 locations supported by a "central hub". It is expected to serve both residents and visitors. San Antonio Bike Share, a non-profit, was formed to oversee the operation, locally operated and maintained by Bike World. B-Cycle, the same system used in Denver, supplies the bike share system. It began operation in March 2011.
Walkability ,
Walk Score ranks San Antonio as the least
walkable American city a population greater than one million and calls it car-dependent. This is due in large part to its rapid growth after
World War II, the prevalence of
single-family zoning and thousands of miles of missing or broken
sidewalks. The
Howard W. Peak Greenway is an of hiking and biking trails that roughly forms a ring around the city. It is accessible by more than 65 trailheads and connects to dozens of parks. With construction beginning in 2007, the trails consist of the
Leon Creek Greenway, the
Salado Creek Greenway, the Westside Creeks, and the
Medina River Greenway. ==International relations==