Frontier Airlines passengers lineup to rebook their flights at Denver International Airport on Monday, July 18, 2011. Frontier Airlines canceled flights for the fifth straight day due to aircrafts ... more 
Frontier Airlines passengers lineup to rebook their flights at Denver International Airport on Monday, July 18, 2011. Frontier Airlines canceled flights for the fifth straight day due to aircrafts damaged last week in a hail storm. (AP Photo/Ed Andrieski) less 
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Associated Press | Photo By Ed Andrieski
Mon, Jul 18, 2011 6:17 PM EDT