| Northampton to Indianola (Iowa) | 4,141.28 mi (6,664.75 km) |
| Northampton to Indio (California) | 5,336.29 mi (8,587.93 km) |
| Northampton to Inglewood (California) | 5,391.60 mi (8,676.94 km) |
| Northampton to Inkster (Michigan) | 3,711.89 mi (5,973.70 km) |
| Northampton to Inver Grove Heights (Minnesota) | 3,956.30 mi (6,367.05 km) |
| Northampton to Inwood (New York) | 3,408.46 mi (5,485.38 km) |
| Northampton to Iona (Florida) | 4,423.53 mi (7,118.98 km) |
| Northampton to Ionia (Michigan) | 3,747.94 mi (6,031.73 km) |
| Northampton to Iowa City (Iowa) | 4,052.10 mi (6,521.22 km) |
| Northampton to Irmo (South Carolina) | 4,013.42 mi (6,458.98 km) |
| Northampton to Irondale (Alabama) | 4,261.29 mi (6,857.88 km) |
| Northampton to Ironton (Ohio) | 3,861.06 mi (6,213.77 km) |
| Northampton to Irvine (California) | 5,389.38 mi (8,673.37 km) |
| Northampton to Irving (Texas) | 4,699.13 mi (7,562.51 km) |
| Northampton to Isabela (Puerto Rico) | 4,209.88 mi (6,775.15 km) |
