1. Los Angeles - 39% overall congestion. (Shutterstock)
2. San Francisco - 34% overall congestion. (Shutterstock)
3. Honolulu - 32% overall congestion. (Shutterstock)
4. New York City - 31% overall congestion. (Shutterstock)
5. Seattle - 31% overall congestion. (Shutterstock)
6. San Jose - 30% overall congestion. (Shutterstock)
7. Miami - 27% overall congestion. (Shutterstock)
8. Chicago - 27% overall congestion. (Shutterstock)
9. Washington D.C. - 27% overall congestion. (Shutterstock)
10. Portland - 26% overall congestion. (Shutterstock)
11. Tampa - 25% overall congestion. (Shutterstock)
12. Houston - 25% overall congestion. (Shutterstock)
13. Austin - 25% overall congestion. (Shutterstock)
14. Las Vegas - 24% overall congestion. (Shutterstock)
15. Atlanta - 24% overall congestion. (Shutterstock)
16. Boston - 24% overall congestion. (Shutterstock)
17. San Diego - 24% overall congestion. (Shutterstock)
18. Orlando - 23% overall congestion. (Shutterstock)
19. New Orleans - 23% overall congestion. (Shutterstock)
20. Philadelphia - 23% overall congestion. (Shutterstock)