| Solothurn to Romeoville (Illinois) | 4,424.72 mi (7,120.90 km) |
| Solothurn to Romulus (Michigan) | 4,212.36 mi (6,779.14 km) |
| Solothurn to Ronkonkoma (New York) | 3,850.73 mi (6,197.15 km) |
| Solothurn to Roosevelt (New York) | 3,875.22 mi (6,236.56 km) |
| Solothurn to Rosamond (California) | 5,845.88 mi (9,408.04 km) |
| Solothurn to Rosaryville (Maryland) | 4,092.35 mi (6,586.01 km) |
| Solothurn to Roscoe (Illinois) | 4,423.55 mi (7,119.02 km) |
| Solothurn to Rose Hill (Virginia) | 4,103.44 mi (6,603.84 km) |
| Solothurn to Roseburg (Oregon) | 5,507.32 mi (8,863.17 km) |
| Solothurn to Rosedale (California) | 5,846.51 mi (9,409.05 km) |
| Solothurn to Rosedale (Maryland) | 4,055.12 mi (6,526.09 km) |
| Solothurn to Roselle (Illinois) | 4,408.31 mi (7,094.49 km) |
| Solothurn to Roselle (New Jersey) | 3,904.93 mi (6,284.38 km) |
| Solothurn to Roselle Park (New Jersey) | 3,904.70 mi (6,284.01 km) |
| Solothurn to Rosemead (California) | 5,887.52 mi (9,475.05 km) |
