| Diamond Bar to Trezzo sull'Adda | 6,028.94 mi (9,702.64 km) |
| Diamond Bar to Tricase | 6,613.98 mi (10,644.17 km) |
| Diamond Bar to Trieste | 6,158.23 mi (9,910.71 km) |
| Diamond Bar to Triggiano | 6,505.93 mi (10,470.28 km) |
| Diamond Bar to Trinitapoli | 6,464.95 mi (10,404.33 km) |
| Diamond Bar to Trissino | 6,089.32 mi (9,799.81 km) |
| Diamond Bar to Triuggio | 6,017.85 mi (9,684.79 km) |
| Diamond Bar to Trofarello | 6,003.12 mi (9,661.09 km) |
| Diamond Bar to Troina | 6,612.38 mi (10,641.59 km) |
| Diamond Bar to Turin | 5,996.35 mi (9,650.19 km) |
| Diamond Bar to Udine | 6,119.62 mi (9,848.58 km) |
| Diamond Bar to Ugento | 6,607.85 mi (10,634.31 km) |
| Diamond Bar to Umbertide | 6,240.32 mi (10,042.82 km) |
| Diamond Bar to Urbino | 6,227.19 mi (10,021.69 km) |
| Diamond Bar to Urgnano | 6,035.12 mi (9,712.59 km) |
