| Fallbrook to Indianola (Iowa) | 1,405.97 mi (2,262.69 km) |
| Fallbrook to Indio (California) | 62.41 mi (100.44 km) |
| Fallbrook to Inglewood (California) | 76.05 mi (122.39 km) |
| Fallbrook to Inkster (Michigan) | 1,935.72 mi (3,115.25 km) |
| Fallbrook to Inver Grove Heights (Minnesota) | 1,509.62 mi (2,429.50 km) |
| Fallbrook to Inwood (New York) | 2,425.49 mi (3,903.45 km) |
| Fallbrook to Iona (Florida) | 2,153.04 mi (3,464.99 km) |
| Fallbrook to Ionia (Michigan) | 1,854.55 mi (2,984.61 km) |
| Fallbrook to Iowa City (Iowa) | 1,512.95 mi (2,434.85 km) |
| Fallbrook to Irmo (South Carolina) | 2,060.04 mi (3,315.32 km) |
| Fallbrook to Irondale (Alabama) | 1,755.50 mi (2,825.20 km) |
| Fallbrook to Ironton (Ohio) | 1,953.19 mi (3,143.35 km) |
| Fallbrook to Irvine (California) | 38.06 mi (61.25 km) |
| Fallbrook to Irving (Texas) | 1,170.92 mi (1,884.41 km) |
| Fallbrook to Isabela (Puerto Rico) | 3,250.41 mi (5,231.03 km) |
