| Diest to Oswego (Illinois) | 4,196.10 mi (6,752.97 km) |
| Diest to Oswego (New York) | 3,663.50 mi (5,895.84 km) |
| Diest to Otsego (Minnesota) | 4,213.15 mi (6,780.41 km) |
| Diest to Ottawa (Illinois) | 4,230.03 mi (6,807.58 km) |
| Diest to Ottawa (Kansas) | 4,603.80 mi (7,409.10 km) |
| Diest to Ottumwa (Iowa) | 4,378.59 mi (7,046.66 km) |
| Diest to Overland (Missouri) | 4,417.65 mi (7,109.52 km) |
| Diest to Overland Park (Kansas) | 4,568.16 mi (7,351.74 km) |
| Diest to Overlea (Maryland) | 3,845.47 mi (6,188.69 km) |
| Diest to Oviedo (Florida) | 4,550.94 mi (7,324.03 km) |
| Diest to Owasso (Oklahoma) | 4,743.33 mi (7,633.65 km) |
| Diest to Owatonna (Minnesota) | 4,256.76 mi (6,850.59 km) |
| Diest to Owensboro (Kentucky) | 4,339.82 mi (6,984.27 km) |
| Diest to Owings Mills (Maryland) | 3,854.35 mi (6,202.97 km) |
| Diest to Owosso (Michigan) | 3,978.67 mi (6,403.06 km) |
