| Kampen to Oswego (Illinois) | 4,171.79 mi (6,713.85 km) |
| Kampen to Oswego (New York) | 3,649.92 mi (5,873.98 km) |
| Kampen to Otsego (Minnesota) | 4,177.27 mi (6,722.67 km) |
| Kampen to Ottawa (Illinois) | 4,205.66 mi (6,768.36 km) |
| Kampen to Ottawa (Kansas) | 4,575.73 mi (7,363.93 km) |
| Kampen to Ottumwa (Iowa) | 4,350.47 mi (7,001.41 km) |
| Kampen to Overland (Missouri) | 4,395.49 mi (7,073.85 km) |
| Kampen to Overland Park (Kansas) | 4,540.39 mi (7,307.05 km) |
| Kampen to Overlea (Maryland) | 3,839.43 mi (6,178.96 km) |
| Kampen to Oviedo (Florida) | 4,556.02 mi (7,332.21 km) |
| Kampen to Owasso (Oklahoma) | 4,717.74 mi (7,592.47 km) |
| Kampen to Owatonna (Minnesota) | 4,223.09 mi (6,796.41 km) |
| Kampen to Owensboro (Kentucky) | 4,323.15 mi (6,957.45 km) |
| Kampen to Owings Mills (Maryland) | 3,847.88 mi (6,192.56 km) |
| Kampen to Owosso (Michigan) | 3,957.06 mi (6,368.27 km) |
