| Niagara Falls to Trezzo sull'Adda | 4,139.90 mi (6,662.53 km) |
| Niagara Falls to Tricase | 4,732.53 mi (7,616.27 km) |
| Niagara Falls to Trieste | 4,309.51 mi (6,935.48 km) |
| Niagara Falls to Triggiano | 4,624.19 mi (7,441.92 km) |
| Niagara Falls to Trinitapoli | 4,578.62 mi (7,368.58 km) |
| Niagara Falls to Trissino | 4,216.42 mi (6,785.67 km) |
| Niagara Falls to Triuggio | 4,127.43 mi (6,642.45 km) |
| Niagara Falls to Trofarello | 4,089.43 mi (6,581.30 km) |
| Niagara Falls to Troina | 4,665.97 mi (7,509.15 km) |
| Niagara Falls to Turin | 4,083.56 mi (6,571.86 km) |
| Niagara Falls to Udine | 4,271.94 mi (6,875.02 km) |
| Niagara Falls to Ugento | 4,724.28 mi (7,602.99 km) |
| Niagara Falls to Umbertide | 4,343.81 mi (6,990.69 km) |
| Niagara Falls to Urbino | 4,339.51 mi (6,983.77 km) |
| Niagara Falls to Urgnano | 4,147.47 mi (6,674.70 km) |
