| Boppard to Somersworth (New Hampshire) | 3,572.21 mi (5,748.91 km) |
| Boppard to Somerton (Arizona) | 5,717.31 mi (9,201.12 km) |
| Boppard to Somerville (Massachusetts) | 3,617.02 mi (5,821.04 km) |
| Boppard to Somerville (New Jersey) | 3,837.38 mi (6,175.66 km) |
| Boppard to Sonoma (California) | 5,609.48 mi (9,027.59 km) |
| Boppard to Soquel (California) | 5,673.08 mi (9,129.93 km) |
| Boppard to South Bend (Indiana) | 4,241.31 mi (6,825.73 km) |
| Boppard to South Bradenton (Florida) | 4,791.27 mi (7,710.81 km) |
| Boppard to South Burlington (Vermont) | 3,614.77 mi (5,817.41 km) |
| Boppard to South Charleston (West Virginia) | 4,223.30 mi (6,796.75 km) |
| Boppard to South Daytona (Florida) | 4,639.84 mi (7,467.10 km) |
| Boppard to South El Monte (California) | 5,736.09 mi (9,231.34 km) |
| Boppard to South Elgin (Illinois) | 4,302.40 mi (6,924.04 km) |
| Boppard to South Euclid (Ohio) | 4,067.68 mi (6,546.29 km) |
| Boppard to South Farmingdale (New York) | 3,783.90 mi (6,089.60 km) |
