| Arco to Rockville (Maryland) | 4,275.34 mi (6,880.49 km) |
| Arco to Rockville Centre (New York) | 4,060.67 mi (6,535.01 km) |
| Arco to Rockwall (Texas) | 5,354.55 mi (8,617.32 km) |
| Arco to Rocky Mount (North Carolina) | 4,437.67 mi (7,141.74 km) |
| Arco to Rocky Point (New York) | 4,019.91 mi (6,469.42 km) |
| Arco to Rocky River (Ohio) | 4,366.96 mi (7,027.95 km) |
| Arco to Roessleville (New York) | 3,985.88 mi (6,414.66 km) |
| Arco to Rogers (Arkansas) | 5,094.91 mi (8,199.47 km) |
| Arco to Rogers (Minnesota) | 4,644.71 mi (7,474.93 km) |
| Arco to Rohnert Park (California) | 5,942.84 mi (9,564.07 km) |
| Arco to Rolla (Missouri) | 4,922.13 mi (7,921.41 km) |
| Arco to Rolling Meadows (Illinois) | 4,583.33 mi (7,376.15 km) |
| Arco to Roma (Texas) | 5,791.56 mi (9,320.62 km) |
| Arco to Rome (Georgia) | 4,829.65 mi (7,772.57 km) |
| Arco to Rome (New York) | 4,034.86 mi (6,493.48 km) |
