| Syracuse to Oerlinghausen | 3,777.17 mi (6,078.77 km) |
| Syracuse to Oestrich-Winkel | 3,813.66 mi (6,137.49 km) |
| Syracuse to Offenburg | 3,860.97 mi (6,213.63 km) |
| Syracuse to Oftersheim | 3,857.17 mi (6,207.52 km) |
| Syracuse to Ohrdruf | 3,892.64 mi (6,264.60 km) |
| Syracuse to Ohringen | 3,899.02 mi (6,274.87 km) |
| Syracuse to Olbernhau | 3,997.05 mi (6,432.63 km) |
| Syracuse to Olching | 4,005.23 mi (6,445.80 km) |
| Syracuse to Oldenburg | 3,724.04 mi (5,993.27 km) |
| Syracuse to Oldenburg in Holstein | 3,786.56 mi (6,093.88 km) |
| Syracuse to Olfen | 3,735.88 mi (6,012.32 km) |
| Syracuse to Olpe | 3,774.90 mi (6,075.12 km) |
| Syracuse to Olsberg | 3,789.50 mi (6,098.62 km) |
| Syracuse to Oranienburg | 3,921.96 mi (6,311.79 km) |
| Syracuse to Ortenberg | 3,843.44 mi (6,185.42 km) |
