| Llantrisant to Grand Prairie (Texas) | 4,634.07 mi (7,457.82 km) |
| Llantrisant to Grand Rapids (Michigan) | 3,696.61 mi (5,949.12 km) |
| Llantrisant to Grand Rapids (Minnesota) | 3,799.30 mi (6,114.39 km) |
| Llantrisant to Grand Terrace (California) | 5,303.30 mi (8,534.84 km) |
| Llantrisant to Grandview (Missouri) | 4,228.18 mi (6,804.59 km) |
| Llantrisant to Grandview (Washington) | 4,703.27 mi (7,569.18 km) |
| Llantrisant to Grandville (Michigan) | 3,703.23 mi (5,959.77 km) |
| Llantrisant to Granger (Indiana) | 3,770.03 mi (6,067.27 km) |
| Llantrisant to Granite Bay (California) | 5,160.39 mi (8,304.84 km) |
| Llantrisant to Granite City (Illinois) | 4,065.53 mi (6,542.84 km) |
| Llantrisant to Grants Pass (Oregon) | 5,015.75 mi (8,072.07 km) |
| Llantrisant to Grantsville (Utah) | 4,780.67 mi (7,693.75 km) |
| Llantrisant to Grapevine (Texas) | 4,623.55 mi (7,440.89 km) |
| Llantrisant to Grass Valley (California) | 5,130.44 mi (8,256.64 km) |
| Llantrisant to Grayslake (Illinois) | 3,816.36 mi (6,141.83 km) |
