| Giffnock to Caño Martin Peña (Puerto Rico) | 4,082.12 mi (6,569.54 km) |
| Giffnock to Cañon City (Colorado) | 4,455.13 mi (7,169.85 km) |
| Giffnock to Canóvanas (Puerto Rico) | 4,079.93 mi (6,566.02 km) |
| Giffnock to Canton (Georgia) | 3,938.56 mi (6,338.51 km) |
| Giffnock to Canton (Illinois) | 3,819.60 mi (6,147.06 km) |
| Giffnock to Canton (Mississippi) | 4,232.82 mi (6,812.07 km) |
| Giffnock to Canton (Ohio) | 3,491.09 mi (5,618.36 km) |
| Giffnock to Canyon (Texas) | 4,531.98 mi (7,293.51 km) |
| Giffnock to Canyon Lake (California) | 5,110.10 mi (8,223.91 km) |
| Giffnock to Canyon Lake (Texas) | 4,682.54 mi (7,535.82 km) |
| Giffnock to Cape Coral (Florida) | 4,245.77 mi (6,832.90 km) |
| Giffnock to Cape Girardeau (Missouri) | 3,968.38 mi (6,386.49 km) |
| Giffnock to Carbondale (Illinois) | 3,934.93 mi (6,332.65 km) |
| Giffnock to Carlisle (Pennsylvania) | 3,364.67 mi (5,414.91 km) |
| Giffnock to Carlsbad (California) | 5,143.61 mi (8,277.84 km) |
