| Thorne to Nasaud | 1,190.62 mi (1,916.12 km) |
| Thorne to Navodari | 1,472.68 mi (2,370.05 km) |
| Thorne to Negresti-Oas | 1,130.66 mi (1,819.62 km) |
| Thorne to Nehoiu | 1,339.23 mi (2,155.29 km) |
| Thorne to Ocna Mures | 1,201.70 mi (1,933.95 km) |
| Thorne to Odobesti | 1,353.50 mi (2,178.25 km) |
| Thorne to Odorheiu Secuiesc | 1,262.03 mi (2,031.04 km) |
| Thorne to Oltenita | 1,404.24 mi (2,259.90 km) |
| Thorne to Onesti | 1,322.94 mi (2,129.06 km) |
| Thorne to Oradea | 1,099.05 mi (1,768.75 km) |
| Thorne to Orastie | 1,196.76 mi (1,925.99 km) |
| Thorne to Oravita | 1,171.61 mi (1,885.53 km) |
| Thorne to Orsova | 1,212.39 mi (1,951.15 km) |
| Thorne to Otelu Rosu | 1,177.16 mi (1,894.46 km) |
| Thorne to Otopeni | 1,362.55 mi (2,192.81 km) |
