| Boppard to San Luis Obispo (California) | 5,740.67 mi (9,238.71 km) |
| Boppard to San Marcos (California) | 5,763.32 mi (9,275.16 km) |
| Boppard to San Marcos (Texas) | 5,281.90 mi (8,500.39 km) |
| Boppard to San Marino (California) | 5,733.73 mi (9,227.54 km) |
| Boppard to San Mateo (California) | 5,649.78 mi (9,092.43 km) |
| Boppard to San Pablo (California) | 5,625.96 mi (9,054.11 km) |
| Boppard to San Rafael (California) | 5,629.15 mi (9,059.24 km) |
| Boppard to San Ramon (California) | 5,626.96 mi (9,055.71 km) |
| Boppard to San Tan Valley (Arizona) | 5,583.01 mi (8,984.99 km) |
| Boppard to Sand Springs (Oklahoma) | 4,883.97 mi (7,860.00 km) |
| Boppard to Sandusky (Ohio) | 4,116.63 mi (6,625.07 km) |
| Boppard to Sandy (Oregon) | 5,179.64 mi (8,335.82 km) |
| Boppard to Sandy (Utah) | 5,172.77 mi (8,324.76 km) |
| Boppard to Sandy Springs (Georgia) | 4,541.89 mi (7,309.47 km) |
| Boppard to Sanford (Florida) | 4,669.92 mi (7,515.51 km) |
