| Waltham to Indianapolis (Indiana) | 795.73 mi (1,280.61 km) |
| Waltham to Indianola (Iowa) | 1,147.31 mi (1,846.42 km) |
| Waltham to Indio (California) | 2,489.01 mi (4,005.68 km) |
| Waltham to Inglewood (California) | 2,589.56 mi (4,167.50 km) |
| Waltham to Inkster (Michigan) | 616.06 mi (991.45 km) |
| Waltham to Inver Grove Heights (Minnesota) | 1,100.99 mi (1,771.87 km) |
| Waltham to Inwood (New York) | 178.17 mi (286.74 km) |
| Waltham to Iona (Florida) | 1,252.81 mi (2,016.20 km) |
| Waltham to Ionia (Michigan) | 702.85 mi (1,131.12 km) |
| Waltham to Iowa City (Iowa) | 1,040.10 mi (1,673.89 km) |
| Waltham to Irmo (South Carolina) | 786.02 mi (1,264.97 km) |
| Waltham to Irondale (Alabama) | 1,035.98 mi (1,667.25 km) |
| Waltham to Ironton (Ohio) | 656.86 mi (1,057.11 km) |
| Waltham to Irvine (California) | 2,569.35 mi (4,134.97 km) |
| Waltham to Irving (Texas) | 1,546.17 mi (2,488.32 km) |
