| Alamo to Octeville | 5,133.71 mi (8,261.91 km) |
| Alamo to Oignies | 5,298.77 mi (8,527.54 km) |
| Alamo to Oissel | 5,254.32 mi (8,456.00 km) |
| Alamo to Olivet | 5,330.37 mi (8,578.40 km) |
| Alamo to Ollioules | 5,647.70 mi (9,089.09 km) |
| Alamo to Olonne-sur-Mer | 5,209.88 mi (8,384.49 km) |
| Alamo to Oloron-Sainte-Marie | 5,354.59 mi (8,617.38 km) |
| Alamo to Onet Village | 5,464.58 mi (8,794.39 km) |
| Alamo to Onnaing | 5,325.21 mi (8,570.11 km) |
| Alamo to Orange | 5,569.53 mi (8,963.29 km) |
| Alamo to Orchies | 5,308.57 mi (8,543.32 km) |
| Alamo to Orleans | 5,329.60 mi (8,577.16 km) |
| Alamo to Orly | 5,325.11 mi (8,569.94 km) |
| Alamo to Ormesson-sur-Marne | 5,329.87 mi (8,577.61 km) |
| Alamo to Orsay | 5,317.97 mi (8,558.45 km) |
