The Colorado Springs Airport (COS) welcomed elevated levels of Spring Break traffic in March, which contributed to the highest level of enplanements in the first quarter since 1998. COS enplaned 100,115 passengers in March (a 21 percent increase compared to last March) and 273,289 year-to-date. A total of 199,549 passengers traveled through the terminal, which is a 21.9 percent increase year-over-year.