| Bluffton to Oswego (Illinois) | 770.86 mi (1,240.57 km) |
| Bluffton to Oswego (New York) | 812.93 mi (1,308.28 km) |
| Bluffton to Otsego (Minnesota) | 1,128.81 mi (1,816.65 km) |
| Bluffton to Ottawa (Illinois) | 767.22 mi (1,234.72 km) |
| Bluffton to Ottawa (Kansas) | 918.30 mi (1,477.86 km) |
| Bluffton to Ottumwa (Iowa) | 879.43 mi (1,415.31 km) |
| Bluffton to Overland (Missouri) | 694.11 mi (1,117.06 km) |
| Bluffton to Overland Park (Kansas) | 898.80 mi (1,446.48 km) |
| Bluffton to Overlea (Maryland) | 552.35 mi (888.92 km) |
| Bluffton to Oviedo (Florida) | 246.13 mi (396.11 km) |
| Bluffton to Owasso (Oklahoma) | 895.15 mi (1,440.61 km) |
| Bluffton to Owatonna (Minnesota) | 1,055.87 mi (1,699.26 km) |
| Bluffton to Owensboro (Kentucky) | 518.71 mi (834.79 km) |
| Bluffton to Owings Mills (Maryland) | 548.60 mi (882.89 km) |
| Bluffton to Owosso (Michigan) | 765.67 mi (1,232.22 km) |
