| Spalding to Oswego (Illinois) | 3,941.73 mi (6,343.61 km) |
| Spalding to Oswego (New York) | 3,410.29 mi (5,488.33 km) |
| Spalding to Otsego (Minnesota) | 3,960.22 mi (6,373.36 km) |
| Spalding to Ottawa (Illinois) | 3,975.66 mi (6,398.21 km) |
| Spalding to Ottawa (Kansas) | 4,349.57 mi (6,999.95 km) |
| Spalding to Ottumwa (Iowa) | 4,124.37 mi (6,637.53 km) |
| Spalding to Overland (Missouri) | 4,163.34 mi (6,700.24 km) |
| Spalding to Overland Park (Kansas) | 4,313.90 mi (6,942.55 km) |
| Spalding to Overlea (Maryland) | 3,594.51 mi (5,784.80 km) |
| Spalding to Oviedo (Florida) | 4,305.44 mi (6,928.93 km) |
| Spalding to Owasso (Oklahoma) | 4,488.97 mi (7,224.30 km) |
| Spalding to Owatonna (Minnesota) | 4,003.32 mi (6,442.71 km) |
| Spalding to Owensboro (Kentucky) | 4,086.08 mi (6,575.92 km) |
| Spalding to Owings Mills (Maryland) | 3,603.23 mi (5,798.83 km) |
| Spalding to Owosso (Michigan) | 3,724.38 mi (5,993.81 km) |
