| Fountain Valley to Trezzo sull'Adda | 6,049.83 mi (9,736.26 km) |
| Fountain Valley to Tricase | 6,634.99 mi (10,677.99 km) |
| Fountain Valley to Trieste | 6,179.29 mi (9,944.61 km) |
| Fountain Valley to Triggiano | 6,526.93 mi (10,504.07 km) |
| Fountain Valley to Trinitapoli | 6,485.93 mi (10,438.09 km) |
| Fountain Valley to Trissino | 6,110.29 mi (9,833.56 km) |
| Fountain Valley to Triuggio | 6,038.74 mi (9,718.41 km) |
| Fountain Valley to Trofarello | 6,023.90 mi (9,694.53 km) |
| Fountain Valley to Troina | 6,633.09 mi (10,674.93 km) |
| Fountain Valley to Turin | 6,017.13 mi (9,683.64 km) |
| Fountain Valley to Udine | 6,140.69 mi (9,882.48 km) |
| Fountain Valley to Ugento | 6,628.86 mi (10,668.12 km) |
| Fountain Valley to Umbertide | 6,261.22 mi (10,076.45 km) |
| Fountain Valley to Urbino | 6,248.12 mi (10,055.37 km) |
| Fountain Valley to Urgnano | 6,056.02 mi (9,746.22 km) |
