| Johnston to Isabela (Puerto Rico) | 2,243.45 mi (3,610.49 km) |
| Johnston to Iselin (New Jersey) | 1,010.76 mi (1,626.66 km) |
| Johnston to Isla Vista (California) | 1,501.36 mi (2,416.20 km) |
| Johnston to Issaquah (Washington) | 1,441.43 mi (2,319.76 km) |
| Johnston to Ithaca (New York) | 883.27 mi (1,421.48 km) |
| Johnston to Ives Estates (Florida) | 1,332.32 mi (2,144.16 km) |
| Johnston to Jackson (Michigan) | 480.05 mi (772.57 km) |
| Johnston to Jackson (Mississippi) | 675.95 mi (1,087.83 km) |
| Johnston to Jackson (Missouri) | 368.43 mi (592.94 km) |
| Johnston to Jackson (Tennessee) | 493.27 mi (793.84 km) |
| Johnston to Jackson (Wyoming) | 874.58 mi (1,407.49 km) |
| Johnston to Jacksonville (Alabama) | 696.55 mi (1,120.98 km) |
| Johnston to Jacksonville (Arkansas) | 478.38 mi (769.89 km) |
| Johnston to Jacksonville (Florida) | 1,031.97 mi (1,660.79 km) |
| Johnston to Jacksonville (Illinois) | 227.60 mi (366.28 km) |
