| Grand Terrace to Octeville | 5,446.24 mi (8,764.88 km) |
| Grand Terrace to Oignies | 5,560.35 mi (8,948.53 km) |
| Grand Terrace to Oissel | 5,551.37 mi (8,934.07 km) |
| Grand Terrace to Olivet | 5,647.78 mi (9,089.22 km) |
| Grand Terrace to Ollioules | 6,012.84 mi (9,676.73 km) |
| Grand Terrace to Olonne-sur-Mer | 5,580.64 mi (8,981.17 km) |
| Grand Terrace to Oloron-Sainte-Marie | 5,775.95 mi (9,295.49 km) |
| Grand Terrace to Onet Village | 5,838.05 mi (9,395.43 km) |
| Grand Terrace to Onnaing | 5,583.47 mi (8,985.73 km) |
| Grand Terrace to Orange | 5,927.24 mi (9,538.97 km) |
| Grand Terrace to Orchies | 5,568.08 mi (8,960.95 km) |
| Grand Terrace to Orleans | 5,646.24 mi (9,086.74 km) |
| Grand Terrace to Orly | 5,622.69 mi (9,048.84 km) |
| Grand Terrace to Ormesson-sur-Marne | 5,625.52 mi (9,053.40 km) |
| Grand Terrace to Orsay | 5,618.03 mi (9,041.35 km) |
