| Johnstown to Noventa Vicentina | 4,345.67 mi (6,993.67 km) |
| Johnstown to Novi di Modena | 4,333.11 mi (6,973.46 km) |
| Johnstown to Novi Ligure | 4,248.40 mi (6,837.14 km) |
| Johnstown to Nuoro | 4,430.52 mi (7,130.23 km) |
| Johnstown to Occhiobello | 4,360.60 mi (7,017.71 km) |
| Johnstown to Oderzo | 4,367.56 mi (7,028.90 km) |
| Johnstown to Oggiono | 4,237.05 mi (6,818.87 km) |
| Johnstown to Olbia | 4,415.94 mi (7,106.77 km) |
| Johnstown to Oleggio | 4,213.21 mi (6,780.50 km) |
| Johnstown to Olgiate Comasco | 4,220.99 mi (6,793.02 km) |
| Johnstown to Olgiate Olona | 4,222.59 mi (6,795.61 km) |
| Johnstown to Omegna | 4,194.28 mi (6,750.05 km) |
| Johnstown to Opera | 4,245.17 mi (6,831.94 km) |
| Johnstown to Oppeano | 4,330.49 mi (6,969.25 km) |
| Johnstown to Orbassano | 4,186.76 mi (6,737.94 km) |
