| Portsmouth to Trezzo sull'Adda | 605.25 mi (974.06 km) |
| Portsmouth to Tricase | 1,200.31 mi (1,931.71 km) |
| Portsmouth to Trieste | 769.15 mi (1,237.82 km) |
| Portsmouth to Triggiano | 1,091.08 mi (1,755.92 km) |
| Portsmouth to Trinitapoli | 1,047.02 mi (1,685.01 km) |
| Portsmouth to Trissino | 677.01 mi (1,089.55 km) |
| Portsmouth to Triuggio | 593.34 mi (954.89 km) |
| Portsmouth to Trofarello | 572.68 mi (921.64 km) |
| Portsmouth to Troina | 1,183.04 mi (1,903.92 km) |
| Portsmouth to Turin | 565.90 mi (910.73 km) |
| Portsmouth to Udine | 731.92 mi (1,177.91 km) |
| Portsmouth to Ugento | 1,192.85 mi (1,919.71 km) |
| Portsmouth to Umbertide | 815.20 mi (1,311.94 km) |
| Portsmouth to Urbino | 806.21 mi (1,297.47 km) |
| Portsmouth to Urgnano | 612.25 mi (985.32 km) |
