| Solothurn to Ridgeland (Mississippi) | 4,941.95 mi (7,953.30 km) |
| Solothurn to Ridgewood (New Jersey) | 3,885.29 mi (6,252.76 km) |
| Solothurn to Rifle (Colorado) | 5,245.56 mi (8,441.92 km) |
| Solothurn to Rincon (Georgia) | 4,570.03 mi (7,354.75 km) |
| Solothurn to Ringwood (New Jersey) | 3,887.06 mi (6,255.62 km) |
| Solothurn to Río Grande (Puerto Rico) | 4,520.55 mi (7,275.11 km) |
| Solothurn to Rio Grande City (Texas) | 5,603.24 mi (9,017.54 km) |
| Solothurn to Rio Linda (California) | 5,721.12 mi (9,207.26 km) |
| Solothurn to Rio Rancho (New Mexico) | 5,435.72 mi (8,747.95 km) |
| Solothurn to Rio Rico (Arizona) | 5,794.46 mi (9,325.29 km) |
| Solothurn to Ripon (California) | 5,767.43 mi (9,281.78 km) |
| Solothurn to River Edge (New Jersey) | 3,884.41 mi (6,251.35 km) |
| Solothurn to River Falls (Wisconsin) | 4,446.50 mi (7,155.95 km) |
| Solothurn to River Forest (Illinois) | 4,401.88 mi (7,084.13 km) |
| Solothurn to River Grove (Illinois) | 4,401.26 mi (7,083.15 km) |
