| Bar to Odessa (Texas) | 6,117.84 mi (9,845.72 km) |
| Bar to Ogden (Utah) | 5,920.25 mi (9,527.72 km) |
| Bar to Oildale (California) | 6,462.29 mi (10,400.06 km) |
| Bar to Ojus (Florida) | 5,477.44 mi (8,815.09 km) |
| Bar to Okemos (Michigan) | 4,898.38 mi (7,883.19 km) |
| Bar to Oklahoma City (Oklahoma) | 5,748.97 mi (9,252.07 km) |
| Bar to Okmulgee (Oklahoma) | 5,684.50 mi (9,148.32 km) |
| Bar to Olathe (Kansas) | 5,475.07 mi (8,811.27 km) |
| Bar to Old Jamestown (Missouri) | 5,305.23 mi (8,537.94 km) |
| Bar to Oldsmar (Florida) | 5,495.08 mi (8,843.47 km) |
| Bar to Olean (New York) | 4,687.56 mi (7,543.91 km) |
| Bar to Olive Branch (Mississippi) | 5,474.82 mi (8,810.87 km) |
| Bar to Olivehurst (California) | 6,308.67 mi (10,152.82 km) |
| Bar to Olney (Maryland) | 4,754.65 mi (7,651.86 km) |
| Bar to Olympia (Washington) | 5,852.76 mi (9,419.10 km) |
