Pictures: BWI Thurgood Marshall Airport

ExpandAutoplay

Image 1 of 6

Passengers wait in line at the Southwest Airlines counter at BWI airport. (Baltimore Sun photo by Barbara Haddock Taylor)

BWI CEO Paul Wiedefeld shows off BWI. Baltimore-Washington (BWI) Thurgood Marshall Airport will post record numbers for passengers in June, for the year to date and the full 2011 fiscal year -- reflecting its strong image as a low-cost airport and the continuing growth of Southwest Airlines.