| Llantrisant to Wichita (Kansas) | 4,394.12 mi (7,071.66 km) |
| Llantrisant to Wichita Falls (Texas) | 4,630.41 mi (7,451.93 km) |
| Llantrisant to Wickliffe (Ohio) | 3,591.60 mi (5,780.13 km) |
| Llantrisant to Wildomar (California) | 5,324.68 mi (8,569.24 km) |
| Llantrisant to Wildwood (Florida) | 4,216.57 mi (6,785.91 km) |
| Llantrisant to Wildwood (Missouri) | 4,093.88 mi (6,588.46 km) |
| Llantrisant to Wilkes-Barre (Pennsylvania) | 3,381.23 mi (5,441.56 km) |
| Llantrisant to Wilkinsburg (Pennsylvania) | 3,578.63 mi (5,759.26 km) |
| Llantrisant to Williamsburg (Virginia) | 3,590.40 mi (5,778.18 km) |
| Llantrisant to Williamsport (Pennsylvania) | 3,428.88 mi (5,518.24 km) |
| Llantrisant to Williamstown (New Jersey) | 3,411.47 mi (5,490.23 km) |
| Llantrisant to Willimantic (Connecticut) | 3,210.96 mi (5,167.54 km) |
| Llantrisant to Williston (North Dakota) | 4,101.05 mi (6,600.01 km) |
| Llantrisant to Willmar (Minnesota) | 3,950.75 mi (6,358.11 km) |
| Llantrisant to Willoughby (Ohio) | 3,587.49 mi (5,773.50 km) |
