The miles car owners put on their vehicles commuting to work each day can quickly add up and contribute to higher auto insurance premiums. Staffing firm Robert Half surveyed workers from 27 major U.S. cities to determine how long they spend commuting to and from the office and which cities have the most stressed-out commuters. The company commissioned an independent research firm to collect the data. More than 2,700 workers in 27 U.S. markets were surveyed to determine average commute times and the cities with the most stressful commutes. The survey was conducted in September 2017. Related: Miserable commutes: The 10 worst cities for drivers in 2015 Above (in the photo gallery) are the top 10 U.S. cities with the spookiest commutes (in minutes). Here are the rest of the cities surveyed by Robert Half with spooky commute times: 11. Houston, Texas: 50.56 minutes. 12. Atlanta, Georgia: 49.90 minutes. 13. Miami, Florida: 49.16 minutes. 14. Detroit, Michigan: 46.87 minutes. 15. Pittsbrgh, Pennsylvania: 46.38 minutes. 16. San Diego, California: 46.19 minutes. 17. Denver, Colorado: 46.11 minutes. 18. St. Louis, Missouri: 45.67 minutes. 19. Phoenix, Arizona: 45.53 minures. 20. Cincinnati, Ohio: 45.42 minutes. 21. Raleigh, North Carolina: 44.68 minutes. 22. Minneapolis, Minnesota: 43.53 minutes. 23. Indianapolis, Indiana: 43.34 minutes. 24. Charlotte, North Carolina: 42.70 minutes. 25. Cleveland, Ohio: 42.00 minutes. 26. Des Moines, Iowa: 40.94 minutes. 27. Salt Lake City, Utah: 40.41 minutes. Professionals with the longest commutes aren't necessarily the most anxious. When asked about their stress levels stemming from commute, here is how U.S. commuters ranked their cities, from most to least stressful: 1. Los Angeles, California. 2. Miami, Florida. 3. Austin, Texas. 4. Phoenix, Arizona. 5. San Francisco, California. 6. Houston, Texas. 7. Dallas, Texas. 8. Washington, D.C. 9. New York, New York. 10. Atlalnta, Georgia. 11. Detroit, Michigan. 12. Pittsburgh, Pennsylvania. 13. Boston, Massachusetts | Chicago, Illinois | Denver, Colorado (3-way tie). 16. Philadelphia, Pennsylvania. 17. Seattle, Washington. 18. Cincinnati, Ohio. 19. San Deigo, California. 20. Charlotte, North Carolina | Raleigh, North Carolina (2-way tie). 22. Indianapolis, Indiana. 23. Salt Lake City, Utah. 24. Minneapolis, Minnesota. 25. St. Louis, Missouri. 26. Clenveland, Ohio. 27. Des Moines, Iowa. Related: Vehicle crashes involving road debris have increased 40% since 2001