| Cosham to Oswego (Illinois) | 3,969.05 mi (6,387.57 km) |
| Cosham to Oswego (New York) | 3,424.70 mi (5,511.53 km) |
| Cosham to Otsego (Minnesota) | 4,002.21 mi (6,440.93 km) |
| Cosham to Ottawa (Illinois) | 4,003.01 mi (6,442.22 km) |
| Cosham to Ottawa (Kansas) | 4,381.06 mi (7,050.63 km) |
| Cosham to Ottumwa (Iowa) | 4,156.24 mi (6,688.83 km) |
| Cosham to Overland (Missouri) | 4,187.61 mi (6,739.31 km) |
| Cosham to Overland Park (Kansas) | 4,345.05 mi (6,992.69 km) |
| Cosham to Overlea (Maryland) | 3,598.99 mi (5,792.02 km) |
| Cosham to Oviedo (Florida) | 4,295.14 mi (6,912.36 km) |
| Cosham to Owasso (Oklahoma) | 4,517.14 mi (7,269.64 km) |
| Cosham to Owatonna (Minnesota) | 4,042.42 mi (6,505.65 km) |
| Cosham to Owensboro (Kentucky) | 4,103.50 mi (6,603.95 km) |
| Cosham to Owings Mills (Maryland) | 3,608.25 mi (5,806.92 km) |
| Cosham to Owosso (Michigan) | 3,748.60 mi (6,032.79 km) |
