| Llantrisant to West St. Paul (Minnesota) | 3,889.29 mi (6,259.21 km) |
| Llantrisant to West University Place (Texas) | 4,723.22 mi (7,601.29 km) |
| Llantrisant to West Valley City (Utah) | 4,761.34 mi (7,662.63 km) |
| Llantrisant to West Whittier-Los Nietos (California) | 5,331.59 mi (8,580.37 km) |
| Llantrisant to Westbrook (Maine) | 3,054.47 mi (4,915.69 km) |
| Llantrisant to Westbury (New York) | 3,307.99 mi (5,323.70 km) |
| Llantrisant to Westchase (Florida) | 4,277.60 mi (6,884.14 km) |
| Llantrisant to Westchester (Florida) | 4,297.56 mi (6,916.26 km) |
| Llantrisant to Westchester (Illinois) | 3,833.18 mi (6,168.91 km) |
| Llantrisant to Western Springs (Illinois) | 3,835.71 mi (6,172.98 km) |
| Llantrisant to Westerville (Ohio) | 3,715.62 mi (5,979.71 km) |
| Llantrisant to Westfield (Indiana) | 3,848.30 mi (6,193.25 km) |
| Llantrisant to Westfield (Massachusetts) | 3,215.96 mi (5,175.60 km) |
| Llantrisant to Westfield (New Jersey) | 3,343.71 mi (5,381.18 km) |
| Llantrisant to Westlake (Ohio) | 3,616.78 mi (5,820.64 km) |
