| Somero to Navodari | 1,146.45 mi (1,845.04 km) |
| Somero to Negresti-Oas | 881.91 mi (1,419.29 km) |
| Somero to Nehoiu | 1,061.87 mi (1,708.92 km) |
| Somero to Ocna Mures | 984.21 mi (1,583.94 km) |
| Somero to Odobesti | 1,037.26 mi (1,669.31 km) |
| Somero to Odorheiu Secuiesc | 992.00 mi (1,596.47 km) |
| Somero to Oltenita | 1,150.49 mi (1,851.54 km) |
| Somero to Onesti | 1,001.87 mi (1,612.35 km) |
| Somero to Oradea | 939.17 mi (1,511.44 km) |
| Somero to Orastie | 1,021.51 mi (1,643.96 km) |
| Somero to Oravita | 1,079.98 mi (1,738.05 km) |
| Somero to Orsova | 1,100.10 mi (1,770.44 km) |
| Somero to Otelu Rosu | 1,045.40 mi (1,682.41 km) |
| Somero to Otopeni | 1,116.20 mi (1,796.34 km) |
| Somero to Ovidiu | 1,149.54 mi (1,850.01 km) |
