| Collinsville to Oswego (Illinois) | 225.62 mi (363.11 km) |
| Collinsville to Oswego (New York) | 775.84 mi (1,248.59 km) |
| Collinsville to Otsego (Minnesota) | 491.51 mi (791.01 km) |
| Collinsville to Ottawa (Illinois) | 195.31 mi (314.33 km) |
| Collinsville to Ottawa (Kansas) | 283.74 mi (456.64 km) |
| Collinsville to Ottumwa (Iowa) | 206.31 mi (332.02 km) |
| Collinsville to Overland (Missouri) | 19.60 mi (31.55 km) |
| Collinsville to Overland Park (Kansas) | 252.49 mi (406.35 km) |
| Collinsville to Overlea (Maryland) | 724.96 mi (1,166.71 km) |
| Collinsville to Oviedo (Florida) | 857.15 mi (1,379.45 km) |
| Collinsville to Owasso (Oklahoma) | 359.40 mi (578.40 km) |
| Collinsville to Owatonna (Minnesota) | 409.65 mi (659.27 km) |
| Collinsville to Owensboro (Kentucky) | 169.20 mi (272.31 km) |
| Collinsville to Owings Mills (Maryland) | 710.32 mi (1,143.15 km) |
| Collinsville to Owosso (Michigan) | 426.31 mi (686.08 km) |
