title: Best Time to Leave to Avoid Traffic in Chicago
url: https://boardspy.site/blog/best-time-to-leave-chicago-avoid-traffic/
type: Article
dateModified: 2026-08-30
publisher: BoardSpy
quick_answer: Quick answer: Chicago rush hour is heaviest roughly 7:00–9:00 a.m. and 4:00–7:00 p.m., and it's now officially the worst in America — INRIX's 2025 scorecard ranks Chicago the most congested US city, with drivers losing 112 hours a year to traffic. Leaving 15–30 minutes before or after the peak helps, but the best time depends on your expressway and day — BoardSpy checks your Chicago route and tells you when to leave today.
primary_keyword: best time to leave chicago to avoid traffic
keywords[6]{term}:
  best time to leave chicago to avoid traffic
  best time to leave chicago
  chicago rush hour times
  when to leave chicago traffic
  chicago traffic worst times
  why is chicago traffic so bad
faqs[6]{q,a}:
  What is the best time to leave to avoid traffic in Chicago?,It depends on your expressway — the Kennedy, the Dan Ryan and the Eisenhower each peak differently, and the direction you travel matters as much as the hour. On most Chicago corridors the spread between the best and worst departure time is around 30 minutes.
  When is Chicago rush hour?,Chicago rush hour runs roughly 7:00–9:00 a.m. inbound and 4:00–7:00 p.m. outbound, with the evening peak usually heavier and longer — and corridors like the Eisenhower staying slow well past the nominal window.
  Is Chicago really the most congested city in the US?,Yes — in the 2025 INRIX Global Traffic Scorecard, Chicago ranked first in the US with an average of 112 hours lost per driver, ahead of New York and Philadelphia, and second worldwide behind Istanbul.
  What is the worst expressway in Chicago?,By INRIX's corridor data, outbound I-55 (the Stevenson) from the I-90 interchange is the standout — ranked the 7th-worst corridor in the country, costing daily drivers about 87 hours a year. The Kennedy, Dan Ryan and Eisenhower all rank among the city's heaviest in the peaks.
  Why is Chicago traffic so bad?,A combination of factors: demand growing faster than road capacity, transit ridership still down sharply from 2019 pushing more people into cars, heavy freight moving through the region, construction season, and lake-effect weather. INRIX's 2025 data shows delays rose 10% in a single year.
  How do I find the best time to leave for my Chicago commute?,Use a commute app that reads your actual route. BoardSpy recommends the best departure time for your Chicago route and tracks its on-time performance and best and worst traffic days.
citations[2]{name,url}:
  INRIX 2025 Global Traffic Scorecard,https://inrix.com/press-releases/2025-global-traffic-scorecard-us/
  WBEZ: Chicago overtakes NYC for worst vehicle congestion in the US,https://www.wbez.org/transportation/2025/12/02/traffic-congestion-chicago-new-york-city-inrix
internal_links[7]{label,url}:
  weather along your route,https://boardspy.site/blog/route-planner-with-weather/
  how weather affects traffic,https://boardspy.site/blog/does-rain-make-traffic-worse/
  the worst day of the week varies by city too,https://boardspy.site/blog/how-much-time-traffic-adds-to-commute/
  It checks your saved Chicago route before you leave,https://boardspy.site/blog/best-time-to-leave-for-work-avoid-traffic/
  how to find alternate routes,https://boardspy.site/compare/google-maps-commute-alternative-app/
  where to eat driving through Chicago,https://boardspy.site/blog/where-to-eat-driving-through-chicago/
  best time to drive through Chicago,https://boardspy.site/blog/best-time-to-drive-through-chicago/