The first 1,000 (yes, 1,000) people to visit the Independence Visitor Center on Thursday, May 16 between 11 a.m. and 1 p.m. will receive 25,00 free frequent flyer miles from Spirit Airlines.

http://www.uwishunu.com/2013/05/inde...-philadelphia/

Spirit Airlines award chart - http://doublizer.com/awards/fs_chart.pdf