| Giffnock to Harrison (Wisconsin) | 3,577.55 mi (5,757.51 km) |
| Giffnock to Harrisonburg (Virginia) | 3,513.97 mi (5,655.19 km) |
| Giffnock to Hartford (Connecticut) | 3,119.11 mi (5,019.73 km) |
| Giffnock to Hartford (Wisconsin) | 3,623.02 mi (5,830.68 km) |
| Giffnock to Hartselle (Alabama) | 4,020.54 mi (6,470.44 km) |
| Giffnock to Hartsville (Tennessee) | 3,890.25 mi (6,260.75 km) |
| Giffnock to Harvey (Illinois) | 3,681.59 mi (5,924.94 km) |
| Giffnock to Harvey (Louisiana) | 4,379.08 mi (7,047.45 km) |
| Giffnock to Hasbrouck Heights (New Jersey) | 3,214.51 mi (5,173.25 km) |
| Giffnock to Haslett (Michigan) | 3,508.14 mi (5,645.80 km) |
| Giffnock to Hastings (Minnesota) | 3,709.57 mi (5,969.97 km) |
| Giffnock to Hastings (Nebraska) | 4,110.05 mi (6,614.49 km) |
| Giffnock to Hattiesburg (Mississippi) | 4,274.84 mi (6,879.70 km) |
| Giffnock to Hauppauge (New York) | 3,183.62 mi (5,123.54 km) |
| Giffnock to Havelock (North Carolina) | 3,615.59 mi (5,818.73 km) |
