| Stony Brook to Oerlinghausen | 3,758.15 mi (6,048.15 km) |
| Stony Brook to Oestrich-Winkel | 3,785.75 mi (6,092.57 km) |
| Stony Brook to Offenburg | 3,826.80 mi (6,158.64 km) |
| Stony Brook to Oftersheim | 3,827.47 mi (6,159.72 km) |
| Stony Brook to Ohrdruf | 3,871.54 mi (6,230.63 km) |
| Stony Brook to Ohringen | 3,869.84 mi (6,227.91 km) |
| Stony Brook to Olbernhau | 3,978.70 mi (6,403.10 km) |
| Stony Brook to Olching | 3,974.64 mi (6,396.56 km) |
| Stony Brook to Oldenburg | 3,709.41 mi (5,969.72 km) |
| Stony Brook to Oldenburg in Holstein | 3,779.76 mi (6,082.93 km) |
| Stony Brook to Olfen | 3,714.30 mi (5,977.59 km) |
| Stony Brook to Olpe | 3,750.95 mi (6,036.57 km) |
| Stony Brook to Olsberg | 3,767.71 mi (6,063.55 km) |
| Stony Brook to Oranienburg | 3,911.67 mi (6,295.22 km) |
| Stony Brook to Ortenberg | 3,818.31 mi (6,144.97 km) |
