Stay away from these airports this summer

Predicting flight delays during the busy summer travel season -- when inclement weather can throw airline schedules off for days -- is difficult at best.

But there are several factors to take into consideration if you have some flexibility in your travel schedule. Crowded flight schedules, as well as the airspace above, causes many airports to be routinely plagued by delays, no matter what the weather, according to a recent survey at Forbes.com.

The accessible slide show singles out the 10 most delay-prone U.S. airports, according to average delays they reported to the federal Department of Transportation over the past three summers.