| Porthcawl to Greenwood Village (Colorado) | 4,565.52 mi (7,347.49 km) |
| Porthcawl to Greer (South Carolina) | 3,915.60 mi (6,301.55 km) |
| Porthcawl to Grenada (Mississippi) | 4,281.27 mi (6,890.04 km) |
| Porthcawl to Gresham (Oregon) | 4,810.89 mi (7,742.38 km) |
| Porthcawl to Gretna (Louisiana) | 4,483.32 mi (7,215.21 km) |
| Porthcawl to Griffin (Georgia) | 4,080.86 mi (6,567.51 km) |
| Porthcawl to Griffith (Indiana) | 3,819.32 mi (6,146.60 km) |
| Porthcawl to Grimes (Iowa) | 4,056.35 mi (6,528.07 km) |
| Porthcawl to Grosse Pointe Park (Michigan) | 3,604.90 mi (5,801.53 km) |
| Porthcawl to Grosse Pointe Woods (Michigan) | 3,601.22 mi (5,795.60 km) |
| Porthcawl to Grove City (Ohio) | 3,722.12 mi (5,990.17 km) |
| Porthcawl to Groveland (Florida) | 4,204.50 mi (6,766.49 km) |
| Porthcawl to Grover Beach (California) | 5,342.73 mi (8,598.29 km) |
| Porthcawl to Groves (Texas) | 4,639.18 mi (7,466.04 km) |
| Porthcawl to Groveton (Virginia) | 3,527.92 mi (5,677.64 km) |
