title: Best Time to Leave to Avoid Traffic in Portland
url: https://boardspy.site/blog/best-time-to-leave-portland-avoid-traffic/
type: Article
dateModified: 2026-09-06
publisher: BoardSpy
quick_answer: Quick answer: Portland rush hour runs 7:00–9:00 a.m. and 4:00–6:00 p.m. — INRIX's 2025 Global Traffic Scorecard ranks Portland 25th worst in the US at 41 hours lost per driver, up 8% in a year. I-5's Rose Quarter is Oregon's top bottleneck. The best time depends on your corridor and day — BoardSpy checks your Portland route and tells you when to leave today.
primary_keyword: best time to leave portland to avoid traffic
keywords[6]{term}:
  best time to leave portland to avoid traffic
  best time to leave portland
  portland rush hour times
  when to leave portland traffic
  why is portland traffic so bad
  i-5 rose quarter traffic
faqs[6]{q,a}:
  What is the best time to leave to avoid traffic in Portland?,Generally before 7:00 a.m. or after 9:00 a.m. in the morning, and outside 4:00–6:00 p.m. in the evening. The exact best time depends on your corridor and day.
  When is Portland rush hour?,Roughly 7:00–9:00 a.m. and 4:00–6:00 p.m., per ODOT's I-5 Rose Quarter traffic report, with the worst hours typically 8:00–9:00 a.m. and 5:00–6:00 p.m.
  How bad is Portland traffic compared to other cities?,In the INRIX 2025 Global Traffic Scorecard, Portland ranked 25th worst in the US at 41 hours lost per driver — up from 38 hours a year earlier, an 8% jump — at an annual cost of $755.
  Why is the I-5 Rose Quarter so bad?,ODOT's Rose Quarter Safety, Access and Mobility refinement study calls the I-5 segment from I-84 to I-405 the top bottleneck in Oregon: about 12 hours of congestion a day and roughly 121,400 vehicles a day. Short weaves and downtown ramps stack delay that a citywide average hides.
  Why is Portland traffic getting worse?,Demand keeps pressing a downtown I-5 pinch that already congests for about 12 hours a day: INRIX measured an 8% one-year jump in delays, from 38 hours to 41, while the Rose Quarter remains Oregon's worst bottleneck.
  How do I find the best time to leave for my Portland commute?,Use a leave-time commute app that reads your actual route — not only a live map. BoardSpy recommends when to leave for your Portland commute route, sends pre-departure traffic and weather alerts, and tracks on-time performance and best and worst traffic days. Download it at https://boardspy.site/apps/.
citations[3]{name,url}:
  INRIX 2025 Global Traffic Scorecard,https://inrix.com/scorecard/
  ODOT I-5 Rose Quarter Traffic Technical Report (7:00–9:00 a.m. / 4:00–6:00 p.m.),https://www.i5rosequarter.org/pdfs/environmental_assessment/I5RQ_Traffic-Technical-Report_010819.pdf
  ODOT I-5 Rose Quarter Safety, Access and Mobility Refinement Study (Mar 2024),https://www.oregon.gov/odot/Projects/Project%20Documents/02_I5RQ_RSEA_508.pdf
internal_links[1]{label,url}:
  try the departure calculator,https://boardspy.site/tools/when-to-leave/