| Greensboro to Orangevale (California) | 2,260.08 mi (3,637.24 km) |
| Greensboro to Orchards (Washington) | 2,296.80 mi (3,696.34 km) |
| Greensboro to Orcutt (California) | 2,268.84 mi (3,651.34 km) |
| Greensboro to Oregon (Ohio) | 430.02 mi (692.06 km) |
| Greensboro to Oregon (Wisconsin) | 693.76 mi (1,116.51 km) |
| Greensboro to Oregon City (Oregon) | 2,299.32 mi (3,700.40 km) |
| Greensboro to Orem (Utah) | 1,745.18 mi (2,808.60 km) |
| Greensboro to Orinda (California) | 2,320.48 mi (3,734.45 km) |
| Greensboro to Orland Park (Illinois) | 575.68 mi (926.46 km) |
| Greensboro to Orlando (Florida) | 533.69 mi (858.89 km) |
| Greensboro to Ormond Beach (Florida) | 475.43 mi (765.13 km) |
| Greensboro to Oro Valley (Arizona) | 1,789.13 mi (2,879.33 km) |
| Greensboro to Oroville (California) | 2,270.39 mi (3,653.84 km) |
| Greensboro to Oshkosh (Wisconsin) | 715.63 mi (1,151.69 km) |
| Greensboro to Oskaloosa (Iowa) | 777.59 mi (1,251.40 km) |
