| Millbrook to Orangevale (California) | 1,991.33 mi (3,204.73 km) |
| Millbrook to Orchards (Washington) | 2,118.71 mi (3,409.74 km) |
| Millbrook to Orcutt (California) | 1,954.97 mi (3,146.21 km) |
| Millbrook to Oregon (Ohio) | 652.53 mi (1,050.15 km) |
| Millbrook to Oregon (Wisconsin) | 738.61 mi (1,188.68 km) |
| Millbrook to Oregon City (Oregon) | 2,116.50 mi (3,406.18 km) |
| Millbrook to Orem (Utah) | 1,501.40 mi (2,416.27 km) |
| Millbrook to Orinda (California) | 2,042.76 mi (3,287.50 km) |
| Millbrook to Orland Park (Illinois) | 634.38 mi (1,020.94 km) |
| Millbrook to Orlando (Florida) | 408.89 mi (658.05 km) |
| Millbrook to Ormond Beach (Florida) | 382.94 mi (616.29 km) |
| Millbrook to Oro Valley (Arizona) | 1,431.09 mi (2,303.12 km) |
| Millbrook to Oroville (California) | 2,011.82 mi (3,237.71 km) |
| Millbrook to Oshkosh (Wisconsin) | 804.67 mi (1,295.00 km) |
| Millbrook to Oskaloosa (Iowa) | 698.59 mi (1,124.27 km) |
