| Llantwit Major to Columbia (Illinois) | 4,081.87 mi (6,569.14 km) |
| Llantwit Major to Columbia (Maryland) | 3,508.95 mi (5,647.11 km) |
| Llantwit Major to Columbia (Missouri) | 4,140.88 mi (6,664.11 km) |
| Llantwit Major to Columbia (Pennsylvania) | 3,457.48 mi (5,564.27 km) |
| Llantwit Major to Columbia (South Carolina) | 3,912.98 mi (6,297.33 km) |
| Llantwit Major to Columbia (Tennessee) | 4,090.52 mi (6,583.06 km) |
| Llantwit Major to Columbia Heights (Minnesota) | 3,889.76 mi (6,259.96 km) |
| Llantwit Major to Columbine (Colorado) | 4,583.00 mi (7,375.63 km) |
| Llantwit Major to Columbus (Georgia) | 4,151.51 mi (6,681.22 km) |
| Llantwit Major to Columbus (Indiana) | 3,876.60 mi (6,238.78 km) |
| Llantwit Major to Columbus (Mississippi) | 4,248.10 mi (6,836.66 km) |
| Llantwit Major to Columbus (Nebraska) | 4,211.15 mi (6,777.20 km) |
| Llantwit Major to Columbus (Ohio) | 3,723.80 mi (5,992.87 km) |
| Llantwit Major to Commack (New York) | 3,290.26 mi (5,295.17 km) |
| Llantwit Major to Commerce (California) | 5,335.84 mi (8,587.20 km) |
