| Towcester to Nasaud | 1,176.27 mi (1,893.03 km) |
| Towcester to Navodari | 1,452.97 mi (2,338.33 km) |
| Towcester to Negresti-Oas | 1,117.60 mi (1,798.61 km) |
| Towcester to Nehoiu | 1,319.29 mi (2,123.20 km) |
| Towcester to Ocna Mures | 1,181.64 mi (1,901.66 km) |
| Towcester to Odobesti | 1,336.92 mi (2,151.57 km) |
| Towcester to Odorheiu Secuiesc | 1,244.54 mi (2,002.90 km) |
| Towcester to Oltenita | 1,379.58 mi (2,220.21 km) |
| Towcester to Onesti | 1,308.04 mi (2,105.09 km) |
| Towcester to Oradea | 1,078.44 mi (1,735.58 km) |
| Towcester to Orastie | 1,172.57 mi (1,887.07 km) |
| Towcester to Oravita | 1,139.95 mi (1,834.58 km) |
| Towcester to Orsova | 1,180.98 mi (1,900.60 km) |
| Towcester to Otelu Rosu | 1,149.42 mi (1,849.81 km) |
| Towcester to Otopeni | 1,338.63 mi (2,154.31 km) |
