| Greensboro to Odessa (Texas) | 1,319.26 mi (2,123.15 km) |
| Greensboro to Ogden (Utah) | 1,759.42 mi (2,831.52 km) |
| Greensboro to Oildale (California) | 2,183.34 mi (3,513.75 km) |
| Greensboro to Ojus (Florida) | 700.83 mi (1,127.88 km) |
| Greensboro to Okemos (Michigan) | 518.01 mi (833.66 km) |
| Greensboro to Oklahoma City (Oklahoma) | 990.95 mi (1,594.78 km) |
| Greensboro to Okmulgee (Oklahoma) | 905.64 mi (1,457.49 km) |
| Greensboro to Olathe (Kansas) | 843.16 mi (1,356.93 km) |
| Greensboro to Old Jamestown (Missouri) | 603.59 mi (971.38 km) |
| Greensboro to Oldsmar (Florida) | 580.15 mi (933.66 km) |
| Greensboro to Olean (New York) | 420.31 mi (676.42 km) |
| Greensboro to Olive Branch (Mississippi) | 568.58 mi (915.04 km) |
| Greensboro to Olivehurst (California) | 2,273.99 mi (3,659.64 km) |
| Greensboro to Olney (Maryland) | 259.15 mi (417.07 km) |
| Greensboro to Olympia (Washington) | 2,317.93 mi (3,730.34 km) |
