| Union City to Nasaud | 6,216.27 mi (10,004.12 km) |
| Union City to Navodari | 6,486.36 mi (10,438.79 km) |
| Union City to Negresti-Oas | 6,159.66 mi (9,913.01 km) |
| Union City to Nehoiu | 6,375.54 mi (10,260.44 km) |
| Union City to Ocna Mures | 6,260.25 mi (10,074.90 km) |
| Union City to Odobesti | 6,364.67 mi (10,242.95 km) |
| Union City to Odorheiu Secuiesc | 6,294.97 mi (10,130.78 km) |
| Union City to Oltenita | 6,461.91 mi (10,399.44 km) |
| Union City to Onesti | 6,327.82 mi (10,183.64 km) |
| Union City to Oradea | 6,176.47 mi (9,940.07 km) |
| Union City to Orastie | 6,279.43 mi (10,105.77 km) |
| Union City to Oravita | 6,295.27 mi (10,131.26 km) |
| Union City to Orsova | 6,330.73 mi (10,188.32 km) |
| Union City to Otelu Rosu | 6,281.12 mi (10,108.49 km) |
| Union City to Otopeni | 6,421.15 mi (10,333.84 km) |
