| Giffnock to Hutchinson (Minnesota) | 3,753.78 mi (6,041.12 km) |
| Giffnock to Hutto (Texas) | 4,620.11 mi (7,435.35 km) |
| Giffnock to Hyattsville (Maryland) | 3,415.48 mi (5,496.68 km) |
| Giffnock to Hybla Valley (Virginia) | 3,430.74 mi (5,521.24 km) |
| Giffnock to Idaho Falls (Idaho) | 4,392.85 mi (7,069.61 km) |
| Giffnock to Idylwood (Virginia) | 3,428.50 mi (5,517.64 km) |
| Giffnock to Ilchester (Maryland) | 3,395.83 mi (5,465.06 km) |
| Giffnock to Immokalee (Florida) | 4,235.54 mi (6,816.45 km) |
| Giffnock to Imperial (California) | 5,106.54 mi (8,218.18 km) |
| Giffnock to Imperial Beach (California) | 5,170.83 mi (8,321.64 km) |
| Giffnock to Independence (Kentucky) | 3,700.73 mi (5,955.74 km) |
| Giffnock to Independence (Missouri) | 4,048.52 mi (6,515.47 km) |
| Giffnock to Indian Trail (North Carolina) | 3,750.53 mi (6,035.90 km) |
| Giffnock to Indiana (Pennsylvania) | 3,417.64 mi (5,500.15 km) |
| Giffnock to Indianapolis (Indiana) | 3,718.11 mi (5,983.73 km) |
