| North Charleston to Orangevale (California) | 2,320.60 mi (3,734.65 km) |
| North Charleston to Orchards (Washington) | 2,402.53 mi (3,866.50 km) |
| North Charleston to Orcutt (California) | 2,302.70 mi (3,705.83 km) |
| North Charleston to Oregon (Ohio) | 631.72 mi (1,016.66 km) |
| North Charleston to Oregon (Wisconsin) | 857.33 mi (1,379.74 km) |
| North Charleston to Oregon City (Oregon) | 2,402.94 mi (3,867.16 km) |
| North Charleston to Orem (Utah) | 1,816.24 mi (2,922.95 km) |
| North Charleston to Orinda (California) | 2,376.20 mi (3,824.12 km) |
| North Charleston to Orland Park (Illinois) | 737.46 mi (1,186.82 km) |
| North Charleston to Orlando (Florida) | 315.12 mi (507.14 km) |
| North Charleston to Ormond Beach (Florida) | 256.63 mi (413.00 km) |
| North Charleston to Oro Valley (Arizona) | 1,791.43 mi (2,883.03 km) |
| North Charleston to Oroville (California) | 2,336.52 mi (3,760.27 km) |
| North Charleston to Oshkosh (Wisconsin) | 893.74 mi (1,438.33 km) |
| North Charleston to Oskaloosa (Iowa) | 901.31 mi (1,450.52 km) |
