| Porthcawl to Great Bend (Kansas) | 4,405.82 mi (7,090.47 km) |
| Porthcawl to Great Falls (Montana) | 4,372.47 mi (7,036.81 km) |
| Porthcawl to Great Falls (Virginia) | 3,525.23 mi (5,673.31 km) |
| Porthcawl to Great Neck (New York) | 3,300.30 mi (5,311.31 km) |
| Porthcawl to Greeley (Colorado) | 4,519.44 mi (7,273.34 km) |
| Porthcawl to Green (Ohio) | 3,609.80 mi (5,809.41 km) |
| Porthcawl to Green Bay (Wisconsin) | 3,707.23 mi (5,966.21 km) |
| Porthcawl to Green River (Wyoming) | 4,624.96 mi (7,443.15 km) |
| Porthcawl to Green Valley (Arizona) | 5,196.37 mi (8,362.75 km) |
| Porthcawl to Green Valley (Maryland) | 3,508.14 mi (5,645.80 km) |
| Porthcawl to Greenacres (Florida) | 4,231.37 mi (6,809.74 km) |
| Porthcawl to Greenbelt (Maryland) | 3,508.88 mi (5,647.00 km) |
| Porthcawl to Greendale (Wisconsin) | 3,777.98 mi (6,080.07 km) |
| Porthcawl to Greeneville (Tennessee) | 3,881.84 mi (6,247.22 km) |
| Porthcawl to Greenfield (California) | 5,294.16 mi (8,520.12 km) |
