| Knowle to Oswego (Illinois) | 3,894.98 mi (6,268.36 km) |
| Knowle to Oswego (New York) | 3,358.52 mi (5,405.01 km) |
| Knowle to Otsego (Minnesota) | 3,919.67 mi (6,308.10 km) |
| Knowle to Ottawa (Illinois) | 3,928.92 mi (6,322.99 km) |
| Knowle to Ottawa (Kansas) | 4,304.58 mi (6,927.55 km) |
| Knowle to Ottumwa (Iowa) | 4,079.50 mi (6,565.32 km) |
| Knowle to Overland (Missouri) | 4,115.42 mi (6,623.13 km) |
| Knowle to Overland Park (Kansas) | 4,268.77 mi (6,869.92 km) |
| Knowle to Overlea (Maryland) | 3,539.35 mi (5,696.03 km) |
| Knowle to Oviedo (Florida) | 4,245.85 mi (6,833.03 km) |
| Knowle to Owasso (Oklahoma) | 4,442.66 mi (7,149.77 km) |
| Knowle to Owatonna (Minnesota) | 3,961.50 mi (6,375.42 km) |
| Knowle to Owensboro (Kentucky) | 4,035.55 mi (6,494.59 km) |
| Knowle to Owings Mills (Maryland) | 3,548.25 mi (5,710.36 km) |
| Knowle to Owosso (Michigan) | 3,676.35 mi (5,916.52 km) |
