| Herselt to Oswego (Illinois) | 4,187.51 mi (6,739.15 km) |
| Herselt to Oswego (New York) | 3,654.96 mi (5,882.09 km) |
| Herselt to Otsego (Minnesota) | 4,204.61 mi (6,766.66 km) |
| Herselt to Ottawa (Illinois) | 4,221.44 mi (6,793.76 km) |
| Herselt to Ottawa (Kansas) | 4,595.22 mi (7,395.29 km) |
| Herselt to Ottumwa (Iowa) | 4,370.01 mi (7,032.85 km) |
| Herselt to Overland (Missouri) | 4,409.06 mi (7,095.70 km) |
| Herselt to Overland Park (Kansas) | 4,559.57 mi (7,337.92 km) |
| Herselt to Overlea (Maryland) | 3,837.00 mi (6,175.06 km) |
| Herselt to Oviedo (Florida) | 4,542.66 mi (7,310.71 km) |
| Herselt to Owasso (Oklahoma) | 4,734.74 mi (7,619.83 km) |
| Herselt to Owatonna (Minnesota) | 4,248.19 mi (6,836.81 km) |
| Herselt to Owensboro (Kentucky) | 4,331.26 mi (6,970.49 km) |
| Herselt to Owings Mills (Maryland) | 3,845.88 mi (6,189.34 km) |
| Herselt to Owosso (Michigan) | 3,970.09 mi (6,389.24 km) |
