| Opfikon to Indianola (Iowa) | 4,675.32 mi (7,524.21 km) |
| Opfikon to Indio (California) | 5,869.80 mi (9,446.53 km) |
| Opfikon to Inglewood (California) | 5,923.58 mi (9,533.09 km) |
| Opfikon to Inkster (Michigan) | 4,240.14 mi (6,823.85 km) |
| Opfikon to Inver Grove Heights (Minnesota) | 4,491.62 mi (7,228.56 km) |
| Opfikon to Inwood (New York) | 3,921.76 mi (6,311.46 km) |
| Opfikon to Iona (Florida) | 4,915.37 mi (7,910.53 km) |
| Opfikon to Ionia (Michigan) | 4,278.47 mi (6,885.53 km) |
| Opfikon to Iowa City (Iowa) | 4,585.39 mi (7,379.47 km) |
| Opfikon to Irmo (South Carolina) | 4,523.20 mi (7,279.38 km) |
| Opfikon to Irondale (Alabama) | 4,779.16 mi (7,691.32 km) |
| Opfikon to Ironton (Ohio) | 4,382.52 mi (7,052.98 km) |
| Opfikon to Irvine (California) | 5,921.95 mi (9,530.45 km) |
| Opfikon to Irving (Texas) | 5,228.77 mi (8,414.90 km) |
| Opfikon to Isabela (Puerto Rico) | 4,618.04 mi (7,432.02 km) |
