| Monroe to Nasaud | 5,662.85 mi (9,113.48 km) |
| Monroe to Navodari | 5,950.26 mi (9,576.02 km) |
| Monroe to Negresti-Oas | 5,601.75 mi (9,015.14 km) |
| Monroe to Nehoiu | 5,818.75 mi (9,364.38 km) |
| Monroe to Ocna Mures | 5,682.96 mi (9,145.84 km) |
| Monroe to Odobesti | 5,827.00 mi (9,377.64 km) |
| Monroe to Odorheiu Secuiesc | 5,738.62 mi (9,235.42 km) |
| Monroe to Oltenita | 5,889.35 mi (9,477.99 km) |
| Monroe to Onesti | 5,793.61 mi (9,323.91 km) |
| Monroe to Oradea | 5,582.09 mi (8,983.50 km) |
| Monroe to Orastie | 5,682.63 mi (9,145.30 km) |
| Monroe to Oravita | 5,661.14 mi (9,110.73 km) |
| Monroe to Orsova | 5,701.88 mi (9,176.29 km) |
| Monroe to Otelu Rosu | 5,665.58 mi (9,117.87 km) |
| Monroe to Otopeni | 5,847.12 mi (9,410.03 km) |
