(Percentage of scheduled flights canceled, diverted, or arriving at least 15 minutes after the scheduled arrival time)
| Airport | 1994 | 2004 | ||
|---|---|---|---|---|
| Delay rank | % | Delay rank | % | |
| Chicago (O'Hare), IL | 26 | 16.5 | 1 | 29.9 |
| Newark, NJ | 1 | 29.9 | 2 | 28.8 |
| Atlanta (Hartsfield), GA | 7 | 21.6 | 3 | 27.0 |
| New York (La Guardia), NY | 6 | 21.8 | 4 | 26.7 |
| Philadelphia, PA | 5 | 21.9 | 5 | 26.5 |
| Fort Lauderdale-Hollywood, FL | 4 | 23.0 | 6 | 24.4 |
| New York (JFK), NY | 3 | 26.5 | 7 | 23.9 |
| San Francisco, CA | 9 | 21.4 | 8 | 23.1 |
| Las Vegas (McCarran), NV | 21 | 17.8 | 9 | 22.4 |
| Seattle-Tacoma, WA | 13 | 20.6 | 10 | 22.2 |
| Miami, FL | 12 | 20.8 | 11 | 22.2 |
| Boston (Logan), MA | 2 | 26.8 | 12 | 22.1 |
| Orlando, FL | 15 | 19.9 | 13 | 22.0 |
| Washington (Dulles), VA | 8 | 21.6 | 14 | 21.6 |
| Tampa, FL | 11 | 20.9 | 15 | 20.7 |
| Chicago (Midway), IL | 30 | 14.1 | 16 | 20.7 |
| Portland, OR | 14 | 20.5 | 17 | 20.6 |
| Phoenix (Sky Harbor), AZ | 25 | 16.8 | 18 | 20.0 |
| Cincinnati, OH | 28 | 16.2 | 19 | 20.0 |
| San Diego (Lindbergh), CA | 23 | 17.2 | 20 | 19.9 |
Notes: Delay rank is based on the list of the 31 airports (of which only the top 20 are shown here) that handled at least 1% of all domestically enplaned passengers each in 2004. BTS collects data from large carriers.
Source: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, special tabulation, November 2005.