title: Best Time to Leave to Avoid Traffic in San Antonio
url: https://boardspy.site/blog/best-time-to-leave-san-antonio-avoid-traffic/
type: Article
dateModified: 2026-10-05
publisher: BoardSpy
quick_answer: Quick answer: San Antonio rush hour runs roughly 6:00–10:00 a.m. and 3:00–7:00 p.m. The typical driver here loses 43 hours a year to congestion against a 49-hour US average — better than most big metros, and getting better rather than worse. The catch is concentration. TxDOT's 2025 congestion ranking puts the 4.16-mile downtown stretch where I-35 and I-10 run on the same pavement at 43rd worst in all of Texas, with 358,434 person-hours of delay per mile a year. The best time depends on whether your route touches it — BoardSpy checks your San Antonio route and tells you when to leave today.
primary_keyword: best time to leave san antonio to avoid traffic
keywords[6]{term}:
  best time to leave san antonio to avoid traffic
  best time to leave san antonio
  san antonio rush hour times
  when to leave san antonio traffic
  i-35 i-10 downtown san antonio
  loop 1604 traffic
faqs[6]{q,a}:
  What is the best time to leave to avoid traffic in San Antonio?,Generally before 6:30 a.m. or after 9:30 a.m. in the morning, and outside 3:00–7:00 p.m. in the evening — the peak windows the Texas A&M Transportation Institute uses for its congestion measurements. Because San Antonio's delay is concentrated in a handful of segments rather than spread across the network, the bigger question is whether your route touches the downtown I-35/I-10 overlap, I-410 north or Loop 1604 north.
  When is San Antonio rush hour?,Roughly 6:00–10:00 a.m. and 3:00–7:00 p.m. on weekdays, using TTI's peak-period definition. The heaviest stretches are the downtown I-35/I-10 overlap, I-35 north of I-410, and the northern arcs of I-410 and Loop 1604.
  What is the worst road in San Antonio?,By TxDOT's 2025 ranking, the 4.16-mile downtown segment where I-35 and I-10 share one roadway, between I-37/US 281 and US 90. It is the 43rd most congested road segment in Texas, with 358,434 person-hours of delay per mile a year and $42.5 million in annual congestion cost. By total cost, the northern arc of Loop 1604 between US 281 and I-10 is worse at $58.8 million a year.
  How bad is San Antonio traffic compared to other cities?,Milder than its size suggests, and improving. The typical San Antonio driver loses 43 hours a year to congestion against a 49-hour US average. TxDOT reports regional delay down 21% over ten years even as miles travelled rose 14%, saving roughly $350 a year per commuter. US 281 North went from the city's most congested corridor to #2084 statewide after expansion.
  Why is I-35 through San Antonio so busy?,Because it is simultaneously a commuter route, the Austin–San Antonio intercity corridor, and the main freight artery from the Mexican border. Laredo at the southern end of I-35 is the busiest land port in the United States, handling 2,945,388 inbound truck crossings in 2025 — 38.8% of all inbound trucks from Mexico. Texas bars delivery trucks from the leftmost lanes across Bexar, Guadalupe and Comal counties as a result.
  How do I find the best time to leave for my San Antonio commute?,Use a leave-time commute app that reads your actual route rather than only a live map. BoardSpy recommends when to leave for your San Antonio route, sends pre-departure traffic and weather alerts, and tracks on-time performance and your best and worst traffic days. Download it here.
citations[3]{name,url}:
  TxDOT / TTI Top 100 Most Congested Road Segments in Texas 2025,https://static.tti.tamu.edu/tti.tamu.edu/documents/umi/most-congested-in-texas-2025.pdf
  TxDOT: San Antonio traffic delay down 21% over ten years,https://www.txdot.gov/about/newsroom/local/san-antonio/txdot-projects-save-san-antonio-drivers-time-and-money.html
  BTS Border Crossing Data Annual Release 2025,https://www.bts.gov/newsroom/border-crossing-data-annual-release-2025
internal_links[6]{label,url}:
  departure time calculator,https://boardspy.site/tools/when-to-leave/
  the worst day of the week varies by city too,https://boardspy.site/blog/how-much-time-traffic-adds-to-commute/
  the best time to leave Austin,https://boardspy.site/blog/best-time-to-leave-austin-avoid-traffic/
  it checks your saved San Antonio route before you leave,https://boardspy.site/apps/
  best app to avoid traffic,https://boardspy.site/compare/best-app-to-avoid-traffic/
  Google Maps commute alternatives,https://boardspy.site/compare/google-maps-commute-alternative-app/