| Kelso to Oswego (Illinois) | 1,733.15 mi (2,789.24 km) |
| Kelso to Oswego (New York) | 2,249.87 mi (3,620.82 km) |
| Kelso to Otsego (Minnesota) | 1,405.86 mi (2,262.51 km) |
| Kelso to Ottawa (Illinois) | 1,718.35 mi (2,765.41 km) |
| Kelso to Ottawa (Kansas) | 1,494.00 mi (2,404.36 km) |
| Kelso to Ottumwa (Iowa) | 1,555.38 mi (2,503.15 km) |
| Kelso to Overland (Missouri) | 1,722.89 mi (2,772.72 km) |
| Kelso to Overland Park (Kansas) | 1,511.62 mi (2,432.71 km) |
| Kelso to Overlea (Maryland) | 2,364.20 mi (3,804.81 km) |
| Kelso to Oviedo (Florida) | 2,548.93 mi (4,102.11 km) |
| Kelso to Owasso (Oklahoma) | 1,551.86 mi (2,497.48 km) |
| Kelso to Owatonna (Minnesota) | 1,444.68 mi (2,324.99 km) |
| Kelso to Owensboro (Kentucky) | 1,908.94 mi (3,072.14 km) |
| Kelso to Owings Mills (Maryland) | 2,349.68 mi (3,781.44 km) |
| Kelso to Owosso (Michigan) | 1,899.14 mi (3,056.37 km) |
