| Vicksburg to Oskaloosa (Iowa) | 627.61 mi (1,010.04 km) |
| Vicksburg to Oswego (Illinois) | 662.16 mi (1,065.64 km) |
| Vicksburg to Oswego (New York) | 1,095.72 mi (1,763.39 km) |
| Vicksburg to Otsego (Minnesota) | 906.55 mi (1,458.94 km) |
| Vicksburg to Ottawa (Illinois) | 634.73 mi (1,021.51 km) |
| Vicksburg to Ottawa (Kansas) | 498.92 mi (802.94 km) |
| Vicksburg to Ottumwa (Iowa) | 607.20 mi (977.19 km) |
| Vicksburg to Overland (Missouri) | 441.73 mi (710.89 km) |
| Vicksburg to Overland Park (Kansas) | 501.49 mi (807.07 km) |
| Vicksburg to Overlea (Maryland) | 938.91 mi (1,511.03 km) |
| Vicksburg to Oviedo (Florida) | 630.09 mi (1,014.03 km) |
| Vicksburg to Owasso (Oklahoma) | 393.45 mi (633.20 km) |
| Vicksburg to Owatonna (Minnesota) | 823.30 mi (1,324.97 km) |
| Vicksburg to Owensboro (Kentucky) | 432.06 mi (695.33 km) |
| Vicksburg to Owings Mills (Maryland) | 927.39 mi (1,492.50 km) |
