title: Best Time to Drive Through Los Angeles
url: https://boardspy.site/blog/best-time-to-drive-through-los-angeles/
type: Article
dateModified: 2026-10-08
publisher: BoardSpy
quick_answer: Quick answer: If you are transiting Los Angeles rather than commuting in it, cross before 6:30 a.m. or between roughly 9:00 a.m. and 2:30 p.m. — those are the gaps between Caltrans District 7's published weekday peaks of 6:30–9:00 a.m. and 2:30–6:00 p.m. Avoid Friday, which Caltrans names the most congested weekday, and avoid weekend afternoons, which have their own 1:00–6:00 p.m. peak. Two things most route guides miss: FHWA ranks I-5 in Los Angeles the single busiest highway location in the United States at 504,000 vehicles a day, and in winter the Grapevine can close entirely. BoardSpy checks your route before you leave and tells you when to go.
primary_keyword: best time to drive through los angeles
keywords[6]{term}:
  best time to drive through los angeles
  driving through la on i-5
  i-5 or i-405 through los angeles
  bypass los angeles
  grapevine closure
  grapevine chains
faqs[6]{q,a}:
  What is the best time to drive through Los Angeles?,Before 6:30 a.m. or between about 9:00 a.m. and 2:30 p.m. on a weekday, which are the gaps between Caltrans District 7's published peaks of 6:30–9:00 a.m. and 2:30–6:00 p.m. Avoid Friday, which Caltrans names the most congested weekday, and avoid weekend afternoons, which carry their own 1:00–6:00 p.m. peak with a 4:00 p.m. peak hour.
  Should I take I-5 or I-405 through Los Angeles?,I-5 unless your destination is on the west side. I-405 runs about 72 miles between the two junctions against roughly 65 for I-5, so it is eight miles longer, and at its busiest point Caltrans measures more traffic on I-405 than on I-5 — 329,000 against 289,000. Caltrans also ranks I-405 southbound at Bel Air Crest the third worst bottleneck in the district. I-405 is a route choice, not a congestion escape.
  How do I actually bypass Los Angeles?,I-15 north to SR-58 west, rejoining SR-99 or I-5 in the Central Valley. SR-58 runs 241 miles and crosses Cajon Pass at 3,777 feet and Tehachapi Summit at 4,064 feet. It is the only route that genuinely misses the metro. SR-14 and US-395 do not bypass LA — SR-14 begins at I-5 inside the metro at Newhall Pass, so you have already crossed the city to reach it.
  How often does the Grapevine close?,Caltrans states that full I-5 closures from snow and ice occur an average of three to five times between October and April, typically lasting four to six hours, though some exceed 24 hours. The pass crosses Tejon Pass at 4,144 feet with a 6% maximum grade. Caltrans activates its Operation Snowflake alert when heavy snow is forecast down to 4,500 feet.
  Can I use chains on the Grapevine?,No. Caltrans does not permit chains on the Grapevine, because snow and ice are usually confined to the summit and there is no practical place to remove them given the traffic volume. Caltrans notes that drivers who do not use the pass regularly often carry no chains and do not expect snow there at all.
  Which is the busiest road in Los Angeles?,By FHWA's national ranking, I-5 in Los Angeles is the busiest highway location in the United States at 504,000 annual average daily traffic. Ten of America's twenty-five busiest highway locations are in the LA metro. Caltrans' own segment counts are lower — a maximum of 289,000 on I-5 in LA County — because the two agencies define road sections differently.
citations[3]{name,url}:
  FHWA — Top 25 Most Traveled Locations (AADT),https://www.fhwa.dot.gov/policyinformation/tables/02.cfm
  Caltrans District 7 Mobility Performance Report (2025 Q2),https://dot.ca.gov/-/media/dot-media/programs/traffic-operations/documents/mpr/2025/2025--d7-q2-a11y.pdf
  Caltrans — Operation Snowflake driver flyer,https://dot.ca.gov/-/media/dot-media/documents/operation-snowflake-flyer-20191224-a11y.pdf
internal_links[6]{label,url}:
  how weather affects traffic,https://boardspy.site/blog/does-rain-make-traffic-worse/
  it checks your saved route before you leave,https://boardspy.site/apps/
  best app to avoid traffic,https://boardspy.site/compare/best-app-to-avoid-traffic/
  the best time to leave Los Angeles,https://boardspy.site/blog/best-time-to-leave-los-angeles-avoid-traffic/
  Sacramento,https://boardspy.site/blog/best-time-to-leave-sacramento-avoid-traffic/
  San Francisco,https://boardspy.site/blog/best-time-to-leave-san-francisco-avoid-traffic/