| Westbrook to Indianapolis (Indiana) | 856.44 mi (1,378.31 km) |
| Westbrook to Indianola (Iowa) | 1,188.82 mi (1,913.22 km) |
| Westbrook to Indio (California) | 2,532.71 mi (4,076.00 km) |
| Westbrook to Inglewood (California) | 2,630.53 mi (4,233.43 km) |
| Westbrook to Inkster (Michigan) | 661.42 mi (1,064.45 km) |
| Westbrook to Inver Grove Heights (Minnesota) | 1,122.59 mi (1,806.63 km) |
| Westbrook to Inwood (New York) | 274.47 mi (441.72 km) |
| Westbrook to Iona (Florida) | 1,353.06 mi (2,177.54 km) |
| Westbrook to Ionia (Michigan) | 740.37 mi (1,191.50 km) |
| Westbrook to Iowa City (Iowa) | 1,081.89 mi (1,741.14 km) |
| Westbrook to Irmo (South Carolina) | 881.19 mi (1,418.14 km) |
| Westbrook to Irondale (Alabama) | 1,122.01 mi (1,805.69 km) |
| Westbrook to Ironton (Ohio) | 732.95 mi (1,179.57 km) |
| Westbrook to Irvine (California) | 2,611.56 mi (4,202.90 km) |
| Westbrook to Irving (Texas) | 1,616.30 mi (2,601.19 km) |
