| Giffnock to Indianola (Iowa) | 3,903.67 mi (6,282.34 km) |
| Giffnock to Indio (California) | 5,075.47 mi (8,168.18 km) |
| Giffnock to Inglewood (California) | 5,127.75 mi (8,252.32 km) |
| Giffnock to Inkster (Michigan) | 3,490.74 mi (5,617.81 km) |
| Giffnock to Inver Grove Heights (Minnesota) | 3,712.00 mi (5,973.89 km) |
| Giffnock to Inwood (New York) | 3,213.61 mi (5,171.81 km) |
| Giffnock to Iona (Florida) | 4,251.32 mi (6,841.83 km) |
| Giffnock to Ionia (Michigan) | 3,521.53 mi (5,667.36 km) |
| Giffnock to Iowa City (Iowa) | 3,817.35 mi (6,143.43 km) |
| Giffnock to Irmo (South Carolina) | 3,821.19 mi (6,149.61 km) |
| Giffnock to Irondale (Alabama) | 4,056.89 mi (6,528.94 km) |
| Giffnock to Ironton (Ohio) | 3,652.13 mi (5,877.54 km) |
| Giffnock to Irvine (California) | 5,126.56 mi (8,250.40 km) |
| Giffnock to Irving (Texas) | 4,473.07 mi (7,198.72 km) |
| Giffnock to Isabela (Puerto Rico) | 4,115.09 mi (6,622.59 km) |
