| Mentana to Oswego (Illinois) | 4,847.67 mi (7,801.57 km) |
| Mentana to Oswego (New York) | 4,288.88 mi (6,902.29 km) |
| Mentana to Otsego (Minnesota) | 4,891.27 mi (7,871.75 km) |
| Mentana to Ottawa (Illinois) | 4,881.59 mi (7,856.16 km) |
| Mentana to Ottawa (Kansas) | 5,263.03 mi (8,470.02 km) |
| Mentana to Ottumwa (Iowa) | 5,038.83 mi (8,109.21 km) |
| Mentana to Overland (Missouri) | 5,062.52 mi (8,147.33 km) |
| Mentana to Overland Park (Kansas) | 5,226.77 mi (8,411.67 km) |
| Mentana to Overlea (Maryland) | 4,446.13 mi (7,155.36 km) |
| Mentana to Oviedo (Florida) | 5,105.74 mi (8,216.89 km) |
| Mentana to Owasso (Oklahoma) | 5,395.74 mi (8,683.61 km) |
| Mentana to Owatonna (Minnesota) | 4,930.11 mi (7,934.24 km) |
| Mentana to Owensboro (Kentucky) | 4,969.76 mi (7,998.05 km) |
| Mentana to Owings Mills (Maryland) | 4,456.32 mi (7,171.76 km) |
| Mentana to Owosso (Michigan) | 4,624.35 mi (7,442.18 km) |
