| Rock Springs to Octeville | 4,762.83 mi (7,665.03 km) |
| Rock Springs to Oignies | 4,878.43 mi (7,851.08 km) |
| Rock Springs to Oissel | 4,868.33 mi (7,834.81 km) |
| Rock Springs to Olivet | 4,964.43 mi (7,989.48 km) |
| Rock Springs to Ollioules | 5,329.25 mi (8,576.60 km) |
| Rock Springs to Olonne-sur-Mer | 4,897.20 mi (7,881.29 km) |
| Rock Springs to Oloron-Sainte-Marie | 5,093.43 mi (8,197.09 km) |
| Rock Springs to Onet Village | 5,154.52 mi (8,295.39 km) |
| Rock Springs to Onnaing | 4,901.73 mi (7,888.58 km) |
| Rock Springs to Orange | 5,243.66 mi (8,438.85 km) |
| Rock Springs to Orchies | 4,886.25 mi (7,863.67 km) |
| Rock Springs to Orleans | 4,962.91 mi (7,987.03 km) |
| Rock Springs to Orly | 4,939.71 mi (7,949.70 km) |
| Rock Springs to Ormesson-sur-Marne | 4,942.60 mi (7,954.34 km) |
| Rock Springs to Orsay | 4,935.00 mi (7,942.11 km) |
