| Thornton to Iselin (New Jersey) | 3,365.15 mi (5,415.68 km) |
| Thornton to Isla Vista (California) | 5,311.41 mi (8,547.88 km) |
| Thornton to Issaquah (Washington) | 4,612.06 mi (7,422.40 km) |
| Thornton to Ithaca (New York) | 3,365.37 mi (5,416.04 km) |
| Thornton to Ives Estates (Florida) | 4,323.25 mi (6,957.60 km) |
| Thornton to Jackson (Michigan) | 3,675.34 mi (5,914.88 km) |
| Thornton to Jackson (Mississippi) | 4,390.06 mi (7,065.12 km) |
| Thornton to Jackson (Missouri) | 4,109.68 mi (6,613.89 km) |
| Thornton to Jackson (Tennessee) | 4,165.90 mi (6,704.37 km) |
| Thornton to Jackson (Wyoming) | 4,519.59 mi (7,273.57 km) |
| Thornton to Jacksonville (Alabama) | 4,140.67 mi (6,663.76 km) |
| Thornton to Jacksonville (Arkansas) | 4,330.38 mi (6,969.07 km) |
| Thornton to Jacksonville (Florida) | 4,156.79 mi (6,689.70 km) |
| Thornton to Jacksonville (Illinois) | 4,013.83 mi (6,459.64 km) |
| Thornton to Jacksonville (North Carolina) | 3,764.80 mi (6,058.86 km) |
