| Westervoort to Oswego (Illinois) | 4,194.48 mi (6,750.37 km) |
| Westervoort to Oswego (New York) | 3,669.27 mi (5,905.12 km) |
| Westervoort to Otsego (Minnesota) | 4,203.34 mi (6,764.62 km) |
| Westervoort to Ottawa (Illinois) | 4,228.37 mi (6,804.91 km) |
| Westervoort to Ottawa (Kansas) | 4,599.58 mi (7,402.30 km) |
| Westervoort to Ottumwa (Iowa) | 4,374.31 mi (7,039.77 km) |
| Westervoort to Overland (Missouri) | 4,417.55 mi (7,109.37 km) |
| Westervoort to Overland Park (Kansas) | 4,564.14 mi (7,345.28 km) |
| Westervoort to Overlea (Maryland) | 3,856.42 mi (6,206.31 km) |
| Westervoort to Oviedo (Florida) | 4,569.47 mi (7,353.84 km) |
| Westervoort to Owasso (Oklahoma) | 4,740.87 mi (7,629.69 km) |
| Westervoort to Owatonna (Minnesota) | 4,248.53 mi (6,837.34 km) |
| Westervoort to Owensboro (Kentucky) | 4,343.54 mi (6,990.26 km) |
| Westervoort to Owings Mills (Maryland) | 3,865.00 mi (6,220.12 km) |
| Westervoort to Owosso (Michigan) | 3,978.91 mi (6,403.44 km) |
