| Ii to Oswego (Illinois) | 4,241.63 mi (6,826.25 km) |
| Ii to Oswego (New York) | 3,853.26 mi (6,201.23 km) |
| Ii to Otsego (Minnesota) | 4,131.80 mi (6,649.49 km) |
| Ii to Ottawa (Illinois) | 4,273.02 mi (6,876.76 km) |
| Ii to Ottawa (Kansas) | 4,586.88 mi (7,381.87 km) |
| Ii to Ottumwa (Iowa) | 4,373.04 mi (7,037.73 km) |
| Ii to Overland (Missouri) | 4,474.00 mi (7,200.21 km) |
| Ii to Overland Park (Kansas) | 4,556.39 mi (7,332.79 km) |
| Ii to Overlea (Maryland) | 4,100.75 mi (6,599.53 km) |
| Ii to Oviedo (Florida) | 4,881.51 mi (7,856.04 km) |
| Ii to Owasso (Oklahoma) | 4,746.18 mi (7,638.24 km) |
| Ii to Owatonna (Minnesota) | 4,197.36 mi (6,754.99 km) |
| Ii to Owensboro (Kentucky) | 4,458.40 mi (7,175.10 km) |
| Ii to Owings Mills (Maryland) | 4,104.82 mi (6,606.06 km) |
| Ii to Owosso (Michigan) | 4,065.44 mi (6,542.69 km) |
