In 2011, New Jersey's Newark Liberty International Airport took the title of America's most delayed airport. It looks like things haven't changed much.

In a ranking by the Bureau of Transportation Statistics, published by the Associated Press, Newark was dead last on a list of airport on-time performance at some of the largest U.S. hubs in the first half of 2012.

To see the full list of what percentage of flights at these airports have arrived on-time so far this year, check out the slideshow below. To compare, you can check how the worst ranked this time last year here.

For more on how airports stack up, check out a list of the worst airports in America. And, then there are the airports you hope to be at when on-time performance isn't at its best.

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  • 1. Salt Lake City 89.72

  • 2. Charlotte, N.C. 87.54

  • 3. Minneapolis/St. Paul 87.14

  • 4. Phoenix 86.85

  • 5. Las Vegas 86.67

  • 6. Chicago Midway 86.16

  • 7. Baltimore 86.14

  • 8. Atlanta 85.91

  • 9. Detroit 85.73

  • 10. Portland, Ore. 85.37

  • 11. Tampa, Fla. 85.35

  • 12. Seattle 85.10

  • 13. Orlando, Fla. 84.92

  • 14. San Diego 84.70

  • 15. Denver 84.52

  • 16. New York JFK 84.35

  • 17. Dallas/Fort Worth 84.23

  • 18. Miami 84.21

  • 19. Los Angeles 83.70

  • 20. Fort Lauderdale, Fla. 83.59

  • 21. Washington National 83.18

  • 22. Philadelphia 82.73

  • 23. Boston 82.56

  • 24. Chicago O'Hare 81.91

  • 25. Washington Dulles 81.02

  • 26. New York, LaGuardia 80.32

  • 27. Houston 79.70

  • 28. San Francisco 73.35

  • 29. Newark, N.J. 70.61

  • Your Flight Has Been Delayed

    In this video from ReasonTV Nick Gillespie talks about air traffic delays.