| Spout Springs to Octeville | 3,887.35 mi (6,256.09 km) |
| Spout Springs to Oignies | 4,065.27 mi (6,542.42 km) |
| Spout Springs to Oissel | 4,010.30 mi (6,453.95 km) |
| Spout Springs to Olivet | 4,078.85 mi (6,564.27 km) |
| Spout Springs to Ollioules | 4,379.36 mi (7,047.90 km) |
| Spout Springs to Olonne-sur-Mer | 3,946.16 mi (6,350.74 km) |
| Spout Springs to Oloron-Sainte-Marie | 4,078.20 mi (6,563.22 km) |
| Spout Springs to Onet Village | 4,196.72 mi (6,753.97 km) |
| Spout Springs to Onnaing | 4,092.24 mi (6,585.82 km) |
| Spout Springs to Orange | 4,303.87 mi (6,926.42 km) |
| Spout Springs to Orchies | 4,075.55 mi (6,558.97 km) |
| Spout Springs to Orleans | 4,078.31 mi (6,563.40 km) |
| Spout Springs to Orly | 4,079.52 mi (6,565.36 km) |
| Spout Springs to Ormesson-sur-Marne | 4,084.78 mi (6,573.82 km) |
| Spout Springs to Orsay | 4,071.78 mi (6,552.89 km) |
