With gas prices low enough for people to afford traveling over the Thanksgiving holiday, highways and cities will be full of people driving rather than flying to their destination this year. One of the cities expected to be the worst for travelers is Denver.

A CBS News report says almost 47 million Americans are expected to travel 50 miles or more over the Thanksgiving holiday. The report also estimates almost 90 percent of them will be traveling by car.

With that many people on the road, there will be lot of congestion with some cities being worse than others.

Fortune Magazine, using 2014 data collected by Google, predicts these will be the worst cities to travel in over the long Thanksgiving holiday.

  1. Los Angeles
  2. Washington, D.C.
  3. San Francisco
  4. Philadelphia
  5. Dallas
  6. New York City
  7. Chicago
  8. Houston
  9. Austin
  10. Miami
  11. Tampa
  12. Denver
  13. Portland, Ore.
  14. Charlotte, N.C.
  15. Seattle

Fortune Magazine indicates, even with the enormous amount of traffic on the road, there are some things you can do to make your travels less frustrating.

One of those is not to travel the day before Thanksgiving Day. If you do, try not to travel between 3 p.m. and 5 p.m. Also, for many cities, the highest traffic for people traveling back home is on Saturday. Sunday is also a poor travel day.

The best travel days around Thanksgiving are Monday and Tuesday before the holiday and Friday or Monday after the holiday.