| Knowle to Odessa (Texas) | 4,916.67 mi (7,912.62 km) |
| Knowle to Ogden (Utah) | 4,746.46 mi (7,638.69 km) |
| Knowle to Oildale (California) | 5,295.03 mi (8,521.52 km) |
| Knowle to Ojus (Florida) | 4,340.44 mi (6,985.26 km) |
| Knowle to Okemos (Michigan) | 3,698.58 mi (5,952.28 km) |
| Knowle to Oklahoma City (Oklahoma) | 4,547.86 mi (7,319.08 km) |
| Knowle to Okmulgee (Oklahoma) | 4,483.71 mi (7,215.83 km) |
| Knowle to Olathe (Kansas) | 4,273.90 mi (6,878.17 km) |
| Knowle to Old Jamestown (Missouri) | 4,105.24 mi (6,606.75 km) |
| Knowle to Oldsmar (Florida) | 4,337.94 mi (6,981.24 km) |
| Knowle to Olean (New York) | 3,494.21 mi (5,623.39 km) |
| Knowle to Olive Branch (Mississippi) | 4,279.73 mi (6,887.56 km) |
| Knowle to Olivehurst (California) | 5,161.77 mi (8,307.07 km) |
| Knowle to Olney (Maryland) | 3,571.58 mi (5,747.90 km) |
| Knowle to Olympia (Washington) | 4,741.33 mi (7,630.43 km) |
