| Schaffhausen to Olympia Heights (Florida) | 4,879.07 mi (7,852.10 km) |
| Schaffhausen to Omaha (Nebraska) | 4,762.48 mi (7,664.46 km) |
| Schaffhausen to On Top of the World Designated Place (Florida) | 4,801.45 mi (7,727.19 km) |
| Schaffhausen to Onalaska (Wisconsin) | 4,459.40 mi (7,176.70 km) |
| Schaffhausen to Oneida (New York) | 3,893.89 mi (6,266.62 km) |
| Schaffhausen to Oneonta (New York) | 3,895.16 mi (6,268.65 km) |
| Schaffhausen to Ontario (California) | 5,884.17 mi (9,469.65 km) |
| Schaffhausen to Ontario (Oregon) | 5,290.42 mi (8,514.11 km) |
| Schaffhausen to Opa-locka (Florida) | 4,866.85 mi (7,832.44 km) |
| Schaffhausen to Opelika (Alabama) | 4,762.50 mi (7,664.50 km) |
| Schaffhausen to Opelousas (Louisiana) | 5,144.79 mi (8,279.74 km) |
| Schaffhausen to Orange (California) | 5,904.54 mi (9,502.44 km) |
| Schaffhausen to Orange (Texas) | 5,233.45 mi (8,422.43 km) |
| Schaffhausen to Orange City (Florida) | 4,766.23 mi (7,670.51 km) |
| Schaffhausen to Orangeburg (South Carolina) | 4,532.77 mi (7,294.79 km) |
