| Kettering to Olympia Heights (Florida) | 4,401.81 mi (7,084.03 km) |
| Kettering to Omaha (Nebraska) | 4,237.03 mi (6,818.85 km) |
| Kettering to On Top of the World Designated Place (Florida) | 4,310.17 mi (6,936.55 km) |
| Kettering to Onalaska (Wisconsin) | 3,934.31 mi (6,331.66 km) |
| Kettering to Oneida (New York) | 3,381.21 mi (5,441.53 km) |
| Kettering to Oneonta (New York) | 3,384.52 mi (5,446.85 km) |
| Kettering to Ontario (California) | 5,361.40 mi (8,628.33 km) |
| Kettering to Ontario (Oregon) | 4,775.40 mi (7,685.27 km) |
| Kettering to Opa-locka (Florida) | 4,389.31 mi (7,063.91 km) |
| Kettering to Opelika (Alabama) | 4,257.15 mi (6,851.22 km) |
| Kettering to Opelousas (Louisiana) | 4,632.76 mi (7,455.70 km) |
| Kettering to Orange (California) | 5,381.79 mi (8,661.15 km) |
| Kettering to Orange (Texas) | 4,719.69 mi (7,595.60 km) |
| Kettering to Orange City (Florida) | 4,277.68 mi (6,884.27 km) |
| Kettering to Orangeburg (South Carolina) | 4,033.68 mi (6,491.58 km) |
