| ARKANSAS | ROG | ROGERS MUNI-CARTER FLD |
| MARSHALL ISLANDS | ROI | KWAJALEIN ATOLL DYESS AAF |
| MINNESOTA | ROS | RUSH CITY RGNL |
| MINNESOTA | ROX | ROSEAU MUNI-RUDY BILLBERG FLD |
| NEW MEXICO | ROW | ROSWELL INTL AIR CENTER |
| NEW YORK | ROC | GREATER ROCHESTER INTL |
| PALAU | ROR | BABELTHUAP ISLAND BABELTHUAP-KOROR |
| VIRGINIA | ROA | ROANOKE RGNL-WOODRUM FIELD |