| Copperas Cove to Olympia Heights (Florida) | 1,129.55 mi (1,817.83 km) |
| Copperas Cove to Omaha (Nebraska) | 708.44 mi (1,140.12 km) |
| Copperas Cove to On Top of the World Designated Place (Florida) | 943.51 mi (1,518.43 km) |
| Copperas Cove to Onalaska (Wisconsin) | 954.94 mi (1,536.82 km) |
| Copperas Cove to Oneida (New York) | 1,471.24 mi (2,367.73 km) |
| Copperas Cove to Oneonta (New York) | 1,479.90 mi (2,381.68 km) |
| Copperas Cove to Ontario (California) | 1,162.24 mi (1,870.44 km) |
| Copperas Cove to Ontario (Oregon) | 1,366.87 mi (2,199.76 km) |
| Copperas Cove to Opa-locka (Florida) | 1,129.60 mi (1,817.91 km) |
| Copperas Cove to Opelika (Alabama) | 742.71 mi (1,195.27 km) |
| Copperas Cove to Opelousas (Louisiana) | 348.45 mi (560.77 km) |
| Copperas Cove to Orange (California) | 1,173.40 mi (1,888.40 km) |
| Copperas Cove to Orange (Texas) | 256.35 mi (412.56 km) |
| Copperas Cove to Orange City (Florida) | 1,004.96 mi (1,617.33 km) |
| Copperas Cove to Orangeburg (South Carolina) | 1,007.73 mi (1,621.78 km) |
