| Kirkby to Oswego (Illinois) | 3,818.75 mi (6,145.69 km) |
| Kirkby to Oswego (New York) | 3,287.23 mi (5,290.28 km) |
| Kirkby to Otsego (Minnesota) | 3,838.74 mi (6,177.85 km) |
| Kirkby to Ottawa (Illinois) | 3,852.69 mi (6,200.30 km) |
| Kirkby to Ottawa (Kansas) | 4,226.88 mi (6,802.51 km) |
| Kirkby to Ottumwa (Iowa) | 4,001.70 mi (6,440.12 km) |
| Kirkby to Overland (Missouri) | 4,040.24 mi (6,502.14 km) |
| Kirkby to Overland Park (Kansas) | 4,191.19 mi (6,745.06 km) |
| Kirkby to Overlea (Maryland) | 3,472.12 mi (5,587.84 km) |
| Kirkby to Oviedo (Florida) | 4,185.09 mi (6,735.26 km) |
| Kirkby to Owasso (Oklahoma) | 4,366.06 mi (7,026.50 km) |
| Kirkby to Owatonna (Minnesota) | 3,881.42 mi (6,246.55 km) |
| Kirkby to Owensboro (Kentucky) | 3,962.93 mi (6,377.71 km) |
| Kirkby to Owings Mills (Maryland) | 3,480.79 mi (5,601.78 km) |
| Kirkby to Owosso (Michigan) | 3,601.27 mi (5,795.68 km) |
