| Llantwit Major to Alum Rock (California) | 5,263.08 mi (8,470.10 km) |
| Llantwit Major to Alvin (Texas) | 4,733.83 mi (7,618.36 km) |
| Llantwit Major to Amarillo (Texas) | 4,690.55 mi (7,548.71 km) |
| Llantwit Major to Amelia (Ohio) | 3,817.02 mi (6,142.90 km) |
| Llantwit Major to American Canyon (California) | 5,230.28 mi (8,417.33 km) |
| Llantwit Major to American Fork (Utah) | 4,773.37 mi (7,681.99 km) |
| Llantwit Major to Americus (Georgia) | 4,145.61 mi (6,671.72 km) |
| Llantwit Major to Ames (Iowa) | 4,044.01 mi (6,508.20 km) |
| Llantwit Major to Amherst (Ohio) | 3,630.52 mi (5,842.75 km) |
| Llantwit Major to Ammon (Idaho) | 4,614.07 mi (7,425.63 km) |
| Llantwit Major to Amsterdam (New York) | 3,240.48 mi (5,215.05 km) |
| Llantwit Major to Anacortes (Washington) | 4,658.78 mi (7,497.59 km) |
| Llantwit Major to Anaheim (California) | 5,334.85 mi (8,585.61 km) |
| Llantwit Major to Anchorage (Alaska) | 4,431.80 mi (7,132.29 km) |
| Llantwit Major to Anderson (California) | 5,102.15 mi (8,211.11 km) |
