| South Portland to Trezzo sull'Adda | 3,756.11 mi (6,044.87 km) |
| South Portland to Tricase | 4,344.25 mi (6,991.40 km) |
| South Portland to Trieste | 3,932.93 mi (6,329.44 km) |
| South Portland to Triggiano | 4,236.91 mi (6,818.65 km) |
| South Portland to Trinitapoli | 4,190.81 mi (6,744.46 km) |
| South Portland to Trissino | 3,835.46 mi (6,172.57 km) |
| South Portland to Triuggio | 3,743.45 mi (6,024.51 km) |
| South Portland to Trofarello | 3,700.49 mi (5,955.36 km) |
| South Portland to Troina | 4,264.76 mi (6,863.47 km) |
| South Portland to Turin | 3,694.89 mi (5,946.35 km) |
| South Portland to Udine | 3,896.06 mi (6,270.10 km) |
| South Portland to Ugento | 4,335.63 mi (6,977.53 km) |
| South Portland to Umbertide | 3,956.14 mi (6,366.78 km) |
| South Portland to Urbino | 3,953.85 mi (6,363.10 km) |
| South Portland to Urgnano | 3,763.91 mi (6,057.42 km) |
