| Porthcawl to Kaneohe (Hawaii) | 7,161.70 mi (11,525.64 km) |
| Porthcawl to Kankakee (Illinois) | 3,855.90 mi (6,205.48 km) |
| Porthcawl to Kannapolis (North Carolina) | 3,824.19 mi (6,154.44 km) |
| Porthcawl to Kansas City (Kansas) | 4,214.76 mi (6,783.00 km) |
| Porthcawl to Kansas City (Missouri) | 4,207.49 mi (6,771.29 km) |
| Porthcawl to Kapaa (Hawaii) | 7,143.42 mi (11,496.22 km) |
| Porthcawl to Kapolei (Hawaii) | 7,171.07 mi (11,540.72 km) |
| Porthcawl to Katy (Texas) | 4,724.46 mi (7,603.28 km) |
| Porthcawl to Kaukauna (Wisconsin) | 3,728.15 mi (5,999.88 km) |
| Porthcawl to Kaysville (Utah) | 4,733.24 mi (7,617.41 km) |
| Porthcawl to Kearney (Missouri) | 4,188.88 mi (6,741.35 km) |
| Porthcawl to Kearney (Nebraska) | 4,300.10 mi (6,920.34 km) |
| Porthcawl to Kearns (Utah) | 4,755.49 mi (7,653.22 km) |
| Porthcawl to Kearny (New Jersey) | 3,318.41 mi (5,340.46 km) |
| Porthcawl to Keene (New Hampshire) | 3,152.44 mi (5,073.36 km) |
