| Somerville to Oerlinghausen | 3,611.95 mi (5,812.87 km) |
| Somerville to Oestrich-Winkel | 3,640.09 mi (5,858.16 km) |
| Somerville to Offenburg | 3,681.69 mi (5,925.11 km) |
| Somerville to Oftersheim | 3,681.96 mi (5,925.55 km) |
| Somerville to Ohrdruf | 3,725.45 mi (5,995.53 km) |
| Somerville to Ohringen | 3,724.30 mi (5,993.68 km) |
| Somerville to Olbernhau | 3,832.49 mi (6,167.80 km) |
| Somerville to Olching | 3,829.23 mi (6,162.55 km) |
| Somerville to Oldenburg | 3,563.04 mi (5,734.16 km) |
| Somerville to Oldenburg in Holstein | 3,633.25 mi (5,847.15 km) |
| Somerville to Olfen | 3,568.23 mi (5,742.51 km) |
| Somerville to Olpe | 3,605.02 mi (5,801.71 km) |
| Somerville to Olsberg | 3,621.65 mi (5,828.49 km) |
| Somerville to Oranienburg | 3,765.20 mi (6,059.51 km) |
| Somerville to Ortenberg | 3,672.46 mi (5,910.25 km) |
