| Duffel to Indianola (Iowa) | 4,379.35 mi (7,047.88 km) |
| Duffel to Indio (California) | 5,561.50 mi (8,950.37 km) |
| Duffel to Inglewood (California) | 5,614.03 mi (9,034.92 km) |
| Duffel to Inkster (Michigan) | 3,954.16 mi (6,363.61 km) |
| Duffel to Inver Grove Heights (Minnesota) | 4,191.65 mi (6,745.81 km) |
| Duffel to Inwood (New York) | 3,653.05 mi (5,879.01 km) |
| Duffel to Iona (Florida) | 4,666.83 mi (7,510.54 km) |
| Duffel to Ionia (Michigan) | 3,989.14 mi (6,419.90 km) |
| Duffel to Iowa City (Iowa) | 4,291.11 mi (6,905.87 km) |
| Duffel to Irmo (South Carolina) | 4,258.01 mi (6,852.61 km) |
| Duffel to Irondale (Alabama) | 4,505.61 mi (7,251.08 km) |
| Duffel to Ironton (Ohio) | 4,105.01 mi (6,606.37 km) |
| Duffel to Irvine (California) | 5,612.80 mi (9,032.93 km) |
| Duffel to Irving (Texas) | 4,940.62 mi (7,951.15 km) |
| Duffel to Isabela (Puerto Rico) | 4,434.58 mi (7,136.76 km) |
