| West Chicago to Nasaud | 5,027.46 mi (8,090.92 km) |
| West Chicago to Navodari | 5,315.38 mi (8,554.28 km) |
| West Chicago to Negresti-Oas | 4,966.38 mi (7,992.61 km) |
| West Chicago to Nehoiu | 5,185.68 mi (8,345.54 km) |
| West Chicago to Ocna Mures | 5,051.68 mi (8,129.90 km) |
| West Chicago to Odobesti | 5,190.97 mi (8,354.07 km) |
| West Chicago to Odorheiu Secuiesc | 5,104.56 mi (8,215.00 km) |
| West Chicago to Oltenita | 5,259.68 mi (8,464.64 km) |
| West Chicago to Onesti | 5,156.67 mi (8,298.86 km) |
| West Chicago to Oradea | 4,952.51 mi (7,970.29 km) |
| West Chicago to Orastie | 5,054.65 mi (8,134.67 km) |
| West Chicago to Oravita | 5,039.54 mi (8,110.36 km) |
| West Chicago to Orsova | 5,079.81 mi (8,175.16 km) |
| West Chicago to Otelu Rosu | 5,040.68 mi (8,112.19 km) |
| West Chicago to Otopeni | 5,217.21 mi (8,396.29 km) |
