| Storrs to Oerlinghausen | 3,682.94 mi (5,927.12 km) |
| Storrs to Oestrich-Winkel | 3,711.34 mi (5,972.82 km) |
| Storrs to Offenburg | 3,753.04 mi (6,039.94 km) |
| Storrs to Oftersheim | 3,753.25 mi (6,040.27 km) |
| Storrs to Ohrdruf | 3,796.52 mi (6,109.91 km) |
| Storrs to Ohringen | 3,795.57 mi (6,108.38 km) |
| Storrs to Olbernhau | 3,903.48 mi (6,282.04 km) |
| Storrs to Olching | 3,900.53 mi (6,277.30 km) |
| Storrs to Oldenburg | 3,633.86 mi (5,848.13 km) |
| Storrs to Oldenburg in Holstein | 3,703.69 mi (5,960.51 km) |
| Storrs to Olfen | 3,639.30 mi (5,856.89 km) |
| Storrs to Olpe | 3,676.16 mi (5,916.22 km) |
| Storrs to Olsberg | 3,692.74 mi (5,942.89 km) |
| Storrs to Oranienburg | 3,835.84 mi (6,173.18 km) |
| Storrs to Ortenberg | 3,743.64 mi (6,024.81 km) |
