| Philadelphia to Indianapolis (Indiana) | 583.61 mi (939.23 km) |
| Philadelphia to Indianola (Iowa) | 968.37 mi (1,558.44 km) |
| Philadelphia to Indio (California) | 2,291.97 mi (3,688.57 km) |
| Philadelphia to Inglewood (California) | 2,397.47 mi (3,858.36 km) |
| Philadelphia to Inkster (Michigan) | 453.74 mi (730.23 km) |
| Philadelphia to Inver Grove Heights (Minnesota) | 970.57 mi (1,561.99 km) |
| Philadelphia to Inwood (New York) | 84.33 mi (135.72 km) |
| Philadelphia to Iona (Florida) | 1,011.33 mi (1,627.59 km) |
| Philadelphia to Ionia (Michigan) | 553.34 mi (890.52 km) |
| Philadelphia to Iowa City (Iowa) | 863.37 mi (1,389.45 km) |
| Philadelphia to Irmo (South Carolina) | 527.19 mi (848.42 km) |
| Philadelphia to Irondale (Alabama) | 777.65 mi (1,251.51 km) |
| Philadelphia to Ironton (Ohio) | 416.06 mi (669.58 km) |
| Philadelphia to Irvine (California) | 2,374.89 mi (3,822.02 km) |
| Philadelphia to Irving (Texas) | 1,306.17 mi (2,102.08 km) |
