| Mentor to Johnstown (Pennsylvania) | 157.31 mi (253.17 km) |
| Mentor to Joliet (Illinois) | 352.13 mi (566.70 km) |
| Mentor to Jonesboro (Arkansas) | 645.70 mi (1,039.16 km) |
| Mentor to Joplin (Missouri) | 770.89 mi (1,240.63 km) |
| Mentor to Joppatowne (Maryland) | 305.05 mi (490.92 km) |
| Mentor to Juana Díaz (Puerto Rico) | 1,852.86 mi (2,981.88 km) |
| Mentor to Junction City (Kansas) | 836.03 mi (1,345.46 km) |
| Mentor to Juneau (Alaska) | 2,528.85 mi (4,069.80 km) |
| Mentor to Jupiter (Florida) | 1,022.81 mi (1,646.06 km) |
| Mentor to Jupiter Farms (Florida) | 1,022.27 mi (1,645.19 km) |
| Mentor to Jurupa Valley (California) | 2,025.64 mi (3,259.95 km) |
| Mentor to Justice (Illinois) | 335.08 mi (539.25 km) |
| Mentor to Kahului (Hawaii) | 4,519.54 mi (7,273.50 km) |
| Mentor to Kailua (Hawaii) | 4,563.14 mi (7,343.67 km) |
| Mentor to Kalamazoo (Michigan) | 222.08 mi (357.40 km) |
