| Gateway to Indianola (Iowa) | 1,222.94 mi (1,968.13 km) |
| Gateway to Indio (California) | 2,108.49 mi (3,393.28 km) |
| Gateway to Inglewood (California) | 2,230.29 mi (3,589.31 km) |
| Gateway to Inkster (Michigan) | 1,089.37 mi (1,753.17 km) |
| Gateway to Inver Grove Heights (Minnesota) | 1,408.21 mi (2,266.30 km) |
| Gateway to Inwood (New York) | 1,072.59 mi (1,726.17 km) |
| Gateway to Iona (Florida) | 14.02 mi (22.56 km) |
| Gateway to Ionia (Michigan) | 1,148.36 mi (1,848.11 km) |
| Gateway to Iowa City (Iowa) | 1,180.63 mi (1,900.05 km) |
| Gateway to Irmo (South Carolina) | 520.78 mi (838.12 km) |
| Gateway to Irondale (Alabama) | 563.70 mi (907.18 km) |
| Gateway to Ironton (Ohio) | 827.64 mi (1,331.96 km) |
| Gateway to Irvine (California) | 2,196.52 mi (3,534.96 km) |
| Gateway to Irving (Texas) | 1,009.97 mi (1,625.39 km) |
| Gateway to Isabela (Puerto Rico) | 1,091.54 mi (1,756.67 km) |
