| Upton to Nasaud | 1,274.77 mi (2,051.55 km) |
| Upton to Navodari | 1,555.37 mi (2,503.13 km) |
| Upton to Negresti-Oas | 1,215.12 mi (1,955.55 km) |
| Upton to Nehoiu | 1,421.77 mi (2,288.12 km) |
| Upton to Ocna Mures | 1,284.10 mi (2,066.56 km) |
| Upton to Odobesti | 1,437.11 mi (2,312.81 km) |
| Upton to Odorheiu Secuiesc | 1,345.30 mi (2,165.05 km) |
| Upton to Oltenita | 1,485.17 mi (2,390.16 km) |
| Upton to Onesti | 1,407.02 mi (2,264.39 km) |
| Upton to Oradea | 1,181.18 mi (1,900.92 km) |
| Upton to Orastie | 1,277.72 mi (2,056.29 km) |
| Upton to Oravita | 1,249.59 mi (2,011.01 km) |
| Upton to Orsova | 1,290.50 mi (2,076.86 km) |
| Upton to Otelu Rosu | 1,256.76 mi (2,022.55 km) |
| Upton to Otopeni | 1,443.73 mi (2,323.46 km) |
