| Mastic to Nasaud | 4,522.82 mi (7,278.78 km) |
| Mastic to Navodari | 4,807.00 mi (7,736.12 km) |
| Mastic to Negresti-Oas | 4,462.21 mi (7,181.24 km) |
| Mastic to Nehoiu | 4,673.75 mi (7,521.68 km) |
| Mastic to Ocna Mures | 4,536.36 mi (7,300.56 km) |
| Mastic to Odobesti | 4,686.58 mi (7,542.32 km) |
| Mastic to Odorheiu Secuiesc | 4,595.81 mi (7,396.24 km) |
| Mastic to Oltenita | 4,738.78 mi (7,626.33 km) |
| Mastic to Onesti | 4,654.98 mi (7,491.47 km) |
| Mastic to Oradea | 4,433.83 mi (7,135.55 km) |
| Mastic to Orastie | 4,531.29 mi (7,292.41 km) |
| Mastic to Oravita | 4,501.70 mi (7,244.78 km) |
| Mastic to Orsova | 4,542.72 mi (7,310.80 km) |
| Mastic to Otelu Rosu | 4,510.26 mi (7,258.55 km) |
| Mastic to Otopeni | 4,697.22 mi (7,559.45 km) |
