| Clemmons to Odessa (Texas) | 1,287.75 mi (2,072.43 km) |
| Clemmons to Ogden (Utah) | 1,732.00 mi (2,787.38 km) |
| Clemmons to Oildale (California) | 2,153.46 mi (3,465.65 km) |
| Clemmons to Ojus (Florida) | 696.28 mi (1,120.56 km) |
| Clemmons to Okemos (Michigan) | 508.66 mi (818.61 km) |
| Clemmons to Oklahoma City (Oklahoma) | 959.97 mi (1,544.92 km) |
| Clemmons to Okmulgee (Oklahoma) | 874.66 mi (1,407.63 km) |
| Clemmons to Olathe (Kansas) | 814.82 mi (1,311.33 km) |
| Clemmons to Old Jamestown (Missouri) | 576.29 mi (927.45 km) |
| Clemmons to Oldsmar (Florida) | 567.39 mi (913.12 km) |
| Clemmons to Olean (New York) | 430.92 mi (693.51 km) |
| Clemmons to Olive Branch (Mississippi) | 537.09 mi (864.36 km) |
| Clemmons to Olivehurst (California) | 2,245.66 mi (3,614.04 km) |
| Clemmons to Olney (Maryland) | 281.46 mi (452.96 km) |
| Clemmons to Olympia (Washington) | 2,294.03 mi (3,691.89 km) |
