Letiská
- UGIUganikUganik
- UGSUgashikUgashik
- UKIUkiahUkiah
- UMTUmiatUmiat
- UNSUmnakUmnak Island
- UNKUnalakleetUnalakleet
- USCUnion County, Troy Shelton FieldUnion
- UCYEverett-StewartUnion City
- JUPCable HeliportUpland
- CCBCable AirportUpland, CA
- UPPUpolu PointUpolu Point
- UCAOneida CountyUtica
- UTOIndian Mountain AFSUtopia Creek
- UVAGarner FldUvalde