| Rowlett to Olympia (Washington) | 1,689.21 mi (2,718.53 km) |
| Rowlett to Olympia Heights (Florida) | 1,093.87 mi (1,760.41 km) |
| Rowlett to Omaha (Nebraska) | 577.38 mi (929.20 km) |
| Rowlett to On Top of the World Designated Place (Florida) | 883.79 mi (1,422.32 km) |
| Rowlett to Onalaska (Wisconsin) | 810.97 mi (1,305.13 km) |
| Rowlett to Oneida (New York) | 1,330.87 mi (2,141.82 km) |
| Rowlett to Oneonta (New York) | 1,341.34 mi (2,158.69 km) |
| Rowlett to Ontario (California) | 1,213.91 mi (1,953.60 km) |
| Rowlett to Ontario (Oregon) | 1,339.47 mi (2,155.67 km) |
| Rowlett to Opa-locka (Florida) | 1,092.20 mi (1,757.72 km) |
| Rowlett to Opelika (Alabama) | 648.86 mi (1,044.24 km) |
| Rowlett to Opelousas (Louisiana) | 310.13 mi (499.10 km) |
| Rowlett to Orange (California) | 1,227.00 mi (1,974.66 km) |
| Rowlett to Orange (Texas) | 253.37 mi (407.75 km) |
| Rowlett to Orange City (Florida) | 944.37 mi (1,519.82 km) |
