| Boppard to Stephenville (Texas) | 5,167.77 mi (8,316.72 km) |
| Boppard to Sterling (Colorado) | 4,894.91 mi (7,877.59 km) |
| Boppard to Sterling (Illinois) | 4,362.45 mi (7,020.69 km) |
| Boppard to Sterling (Virginia) | 4,020.41 mi (6,470.22 km) |
| Boppard to Sterling Heights (Michigan) | 4,076.80 mi (6,560.98 km) |
| Boppard to Steubenville (Ohio) | 4,087.02 mi (6,577.43 km) |
| Boppard to Stevens Point (Wisconsin) | 4,226.16 mi (6,801.34 km) |
| Boppard to Stevenson Ranch (California) | 5,732.15 mi (9,225.00 km) |
| Boppard to Stillwater (Minnesota) | 4,315.84 mi (6,945.68 km) |
| Boppard to Stillwater (Oklahoma) | 4,918.80 mi (7,916.04 km) |
| Boppard to Stockbridge (Georgia) | 4,556.49 mi (7,332.97 km) |
| Boppard to Stockton (California) | 5,597.05 mi (9,007.58 km) |
| Boppard to Stone Ridge (Virginia) | 4,029.94 mi (6,485.57 km) |
| Boppard to Stonecrest (Georgia) | 4,544.94 mi (7,314.38 km) |
| Boppard to Stony Brook (New York) | 3,762.71 mi (6,055.50 km) |
