| Westmont to Johnstown (Pennsylvania) | 2,194.99 mi (3,532.50 km) |
| Westmont to Joliet (Illinois) | 1,718.73 mi (2,766.03 km) |
| Westmont to Jonesboro (Arkansas) | 1,565.84 mi (2,519.97 km) |
| Westmont to Joplin (Missouri) | 1,352.35 mi (2,176.39 km) |
| Westmont to Joppatowne (Maryland) | 2,333.89 mi (3,756.03 km) |
| Westmont to Juana Díaz (Puerto Rico) | 3,360.43 mi (5,408.09 km) |
| Westmont to Junction City (Kansas) | 1,239.01 mi (1,993.99 km) |
| Westmont to Juneau (Alaska) | 1,845.24 mi (2,969.63 km) |
| Westmont to Jupiter (Florida) | 2,312.49 mi (3,721.59 km) |
| Westmont to Jupiter Farms (Florida) | 2,306.35 mi (3,711.71 km) |
| Westmont to Jurupa Valley (California) | 47.80 mi (76.93 km) |
| Westmont to Justice (Illinois) | 1,737.07 mi (2,795.54 km) |
| Westmont to Kahului (Hawaii) | 2,491.22 mi (4,009.23 km) |
| Westmont to Kailua (Hawaii) | 2,545.93 mi (4,097.28 km) |
| Westmont to Kalamazoo (Michigan) | 1,856.18 mi (2,987.23 km) |
