| Middlesex to Nasaud | 4,597.51 mi (7,398.98 km) |
| Middlesex to Navodari | 4,882.25 mi (7,857.22 km) |
| Middlesex to Negresti-Oas | 4,536.80 mi (7,301.28 km) |
| Middlesex to Nehoiu | 4,749.15 mi (7,643.01 km) |
| Middlesex to Ocna Mures | 4,611.88 mi (7,422.10 km) |
| Middlesex to Odobesti | 4,761.41 mi (7,662.75 km) |
| Middlesex to Odorheiu Secuiesc | 4,670.88 mi (7,517.06 km) |
| Middlesex to Oltenita | 4,814.91 mi (7,748.85 km) |
| Middlesex to Onesti | 4,729.57 mi (7,611.51 km) |
| Middlesex to Oradea | 4,509.50 mi (7,257.34 km) |
| Middlesex to Orastie | 4,607.42 mi (7,414.92 km) |
| Middlesex to Oravita | 4,578.88 mi (7,368.99 km) |
| Middlesex to Orsova | 4,619.88 mi (7,434.97 km) |
| Middlesex to Otelu Rosu | 4,586.89 mi (7,381.89 km) |
| Middlesex to Otopeni | 4,773.25 mi (7,681.80 km) |
