| Montabaur to Oswego (Illinois) | 4,318.94 mi (6,950.66 km) |
| Montabaur to Oswego (New York) | 3,788.83 mi (6,097.53 km) |
| Montabaur to Otsego (Minnesota) | 4,331.93 mi (6,971.57 km) |
| Montabaur to Ottawa (Illinois) | 4,352.85 mi (7,005.24 km) |
| Montabaur to Ottawa (Kansas) | 4,725.52 mi (7,604.99 km) |
| Montabaur to Ottumwa (Iowa) | 4,500.27 mi (7,242.48 km) |
| Montabaur to Overland (Missouri) | 4,541.11 mi (7,308.21 km) |
| Montabaur to Overland Park (Kansas) | 4,689.97 mi (7,547.78 km) |
| Montabaur to Overlea (Maryland) | 3,971.94 mi (6,392.21 km) |
| Montabaur to Oviedo (Florida) | 4,678.07 mi (7,528.63 km) |
| Montabaur to Owasso (Oklahoma) | 4,865.84 mi (7,830.82 km) |
| Montabaur to Owatonna (Minnesota) | 4,376.43 mi (7,043.18 km) |
| Montabaur to Owensboro (Kentucky) | 4,464.60 mi (7,185.08 km) |
| Montabaur to Owings Mills (Maryland) | 3,980.76 mi (6,406.42 km) |
| Montabaur to Owosso (Michigan) | 4,102.23 mi (6,601.91 km) |
