Caldwell Municipal Airport is a city-owned public-use airport located east of the central business district of Caldwell, a city in Sumner County, Kansas, United States.
Caldwell Municipal Airport covers an area of at an elevation of above mean sea level. It has one runway designated 17/35 with a turf surface measuring . For the 12-month period ending November 19, 2008, the airport had 900 general aviation aircraft operations, an average of 75 per month.