Casper’s airport saw an increased number of travelers last month, when compared to the same time last year. According to officials at Natrona County International Airport, the number of passengers flying out of Casper grew by more than 3.5% in May, when compared to figures from May 2011.

Airport Manager Glenn Januska said he expects continued strong passenger growth, as Delta is switching to jet service next week, and United is adding a fifth regional jet flight on July 1st.