| Syracuse to Octeville | 3,435.52 mi (5,528.94 km) |
| Syracuse to Oignies | 3,600.78 mi (5,794.89 km) |
| Syracuse to Oissel | 3,555.95 mi (5,722.74 km) |
| Syracuse to Olivet | 3,632.70 mi (5,846.26 km) |
| Syracuse to Ollioules | 3,955.48 mi (6,365.73 km) |
| Syracuse to Olonne-sur-Mer | 3,516.08 mi (5,658.59 km) |
| Syracuse to Oloron-Sainte-Marie | 3,669.74 mi (5,905.87 km) |
| Syracuse to Onet Village | 3,772.47 mi (6,071.20 km) |
| Syracuse to Onnaing | 3,627.29 mi (5,837.57 km) |
| Syracuse to Orange | 3,876.00 mi (6,237.81 km) |
| Syracuse to Orchies | 3,610.64 mi (5,810.76 km) |
| Syracuse to Orleans | 3,631.89 mi (5,844.96 km) |
| Syracuse to Orly | 3,626.80 mi (5,836.77 km) |
| Syracuse to Ormesson-sur-Marne | 3,631.54 mi (5,844.39 km) |
| Syracuse to Orsay | 3,619.71 mi (5,825.35 km) |
