Which airports are you most likely to be stuck twiddling your thumbs in? The Department of Transportation released statistics on the nation's airports on-time departure percentages for 2007 (based on data through November). Here's the results:
Rank / Airport / On-time departure percentage

10. Chicago, IL (MDW) 74.09%
9. Miami, FL (MIA) 73.70%
8. New York, NY (LGA) 72.29%
7. Atlanta, GA (ATL) 72.19%
6. Charlotte, NC (CLT) 71.66%
5. Dallas/Ft.Worth, TX (DFW) 71.57%
4. Philadelphia, PA (PHL) 69.62%
3. New York, NY (JFK) 69.06%
2. Newark, NJ (EWR) 68.40%
1. Chicago, IL (ORD) 68.15%

Seek alternate airports when possible, or factor the likelihood of a delay into your plans.

Ranking of Major Airport On-Time Departure Performance Year-to-date through November 2007 [DOT via Rick Seaney]
(Photo: Lili Vieira de Carvalho)