| Rotterdam to Oswego (Illinois) | 4,142.67 mi (6,666.98 km) |
| Rotterdam to Oswego (New York) | 3,614.34 mi (5,816.72 km) |
| Rotterdam to Otsego (Minnesota) | 4,155.49 mi (6,687.62 km) |
| Rotterdam to Ottawa (Illinois) | 4,176.58 mi (6,721.55 km) |
| Rotterdam to Ottawa (Kansas) | 4,548.99 mi (7,320.89 km) |
| Rotterdam to Ottumwa (Iowa) | 4,323.73 mi (6,958.38 km) |
| Rotterdam to Overland (Missouri) | 4,365.08 mi (7,024.92 km) |
| Rotterdam to Overland Park (Kansas) | 4,513.45 mi (7,263.70 km) |
| Rotterdam to Overlea (Maryland) | 3,799.63 mi (6,114.91 km) |
| Rotterdam to Oviedo (Florida) | 4,510.40 mi (7,258.78 km) |
| Rotterdam to Owasso (Oklahoma) | 4,689.47 mi (7,546.97 km) |
| Rotterdam to Owatonna (Minnesota) | 4,199.87 mi (6,759.04 km) |
| Rotterdam to Owensboro (Kentucky) | 4,289.46 mi (6,903.23 km) |
| Rotterdam to Owings Mills (Maryland) | 3,808.31 mi (6,128.89 km) |
| Rotterdam to Owosso (Michigan) | 3,926.27 mi (6,318.71 km) |
