| Towson to Noventa Vicentina | 4,288.08 mi (6,900.99 km) |
| Towson to Novi di Modena | 4,274.14 mi (6,878.56 km) |
| Towson to Novi Ligure | 4,187.33 mi (6,738.85 km) |
| Towson to Nuoro | 4,360.73 mi (7,017.92 km) |
| Towson to Occhiobello | 4,302.28 mi (6,923.86 km) |
| Towson to Oderzo | 4,311.86 mi (6,939.27 km) |
| Towson to Oggiono | 4,178.68 mi (6,724.93 km) |
| Towson to Olbia | 4,347.50 mi (6,996.63 km) |
| Towson to Oleggio | 4,153.84 mi (6,684.96 km) |
| Towson to Olgiate Comasco | 4,162.30 mi (6,698.57 km) |
| Towson to Olgiate Olona | 4,163.51 mi (6,700.51 km) |
| Towson to Omegna | 4,135.34 mi (6,655.19 km) |
| Towson to Opera | 4,185.82 mi (6,736.42 km) |
| Towson to Oppeano | 4,272.63 mi (6,876.13 km) |
| Towson to Orbassano | 4,125.18 mi (6,638.84 km) |
