| Machelen to Oswego (Illinois) | 4,175.85 mi (6,720.38 km) |
| Machelen to Oswego (New York) | 3,641.66 mi (5,860.69 km) |
| Machelen to Otsego (Minnesota) | 4,194.92 mi (6,751.07 km) |
| Machelen to Ottawa (Illinois) | 4,209.78 mi (6,774.99 km) |
| Machelen to Ottawa (Kansas) | 4,584.14 mi (7,377.46 km) |
| Machelen to Ottumwa (Iowa) | 4,358.96 mi (7,015.06 km) |
| Machelen to Overland (Missouri) | 4,397.03 mi (7,076.33 km) |
| Machelen to Overland Park (Kansas) | 4,548.44 mi (7,320.01 km) |
| Machelen to Overlea (Maryland) | 3,822.58 mi (6,151.85 km) |
| Machelen to Oviedo (Florida) | 4,526.67 mi (7,284.98 km) |
| Machelen to Owasso (Oklahoma) | 4,723.24 mi (7,601.32 km) |
| Machelen to Owatonna (Minnesota) | 4,238.11 mi (6,820.58 km) |
| Machelen to Owensboro (Kentucky) | 4,318.37 mi (6,949.74 km) |
| Machelen to Owings Mills (Maryland) | 3,831.51 mi (6,166.22 km) |
| Machelen to Owosso (Michigan) | 3,958.01 mi (6,369.80 km) |
