| Llantrisant to University Place (Washington) | 4,723.19 mi (7,601.23 km) |
| Llantrisant to Upland (California) | 5,310.03 mi (8,545.66 km) |
| Llantrisant to Upper Arlington (Ohio) | 3,725.97 mi (5,996.37 km) |
| Llantrisant to Upper Grand Lagoon (Florida) | 4,303.97 mi (6,926.57 km) |
| Llantrisant to Upper Montclair (New Jersey) | 3,329.67 mi (5,358.58 km) |
| Llantrisant to Urbana (Illinois) | 3,925.14 mi (6,316.90 km) |
| Llantrisant to Urbana (Maryland) | 3,524.68 mi (5,672.43 km) |
| Llantrisant to Urbana (Ohio) | 3,749.64 mi (6,034.46 km) |
| Llantrisant to Urbandale (Iowa) | 4,067.44 mi (6,545.91 km) |
| Llantrisant to Utica (New York) | 3,277.20 mi (5,274.15 km) |
| Llantrisant to Uvalde (Texas) | 4,921.94 mi (7,921.10 km) |
| Llantrisant to Vacaville (California) | 5,207.62 mi (8,380.86 km) |
| Llantrisant to Vadnais Heights (Minnesota) | 3,881.77 mi (6,247.11 km) |
| Llantrisant to Vail (Arizona) | 5,184.37 mi (8,343.44 km) |
| Llantrisant to Valdosta (Georgia) | 4,167.72 mi (6,707.30 km) |
