| Thornton to Robertsville (New Jersey) | 3,374.77 mi (5,431.17 km) |
| Thornton to Robinson (Texas) | 4,697.97 mi (7,560.65 km) |
| Thornton to Robstown (Texas) | 4,915.33 mi (7,910.46 km) |
| Thornton to Rochester (Michigan) | 3,606.45 mi (5,804.02 km) |
| Thornton to Rochester (Minnesota) | 3,884.49 mi (6,251.49 km) |
| Thornton to Rochester (New Hampshire) | 3,112.47 mi (5,009.03 km) |
| Thornton to Rochester (New York) | 3,375.67 mi (5,432.61 km) |
| Thornton to Rochester Hills (Michigan) | 3,608.85 mi (5,807.88 km) |
| Thornton to Rock Hill (South Carolina) | 3,898.35 mi (6,273.80 km) |
| Thornton to Rock Island (Illinois) | 3,940.80 mi (6,342.10 km) |
| Thornton to Rock Springs (Wyoming) | 4,573.14 mi (7,359.76 km) |
| Thornton to Rockford (Illinois) | 3,846.91 mi (6,191.00 km) |
| Thornton to Rockledge (Florida) | 4,222.79 mi (6,795.92 km) |
| Thornton to Rocklin (California) | 5,096.22 mi (8,201.57 km) |
| Thornton to Rockport (Texas) | 4,879.93 mi (7,853.50 km) |
