| Rowlett to Orbetello | 5,511.15 mi (8,869.34 km) |
| Rowlett to Oria | 5,855.98 mi (9,424.28 km) |
| Rowlett to Oristano | 5,500.25 mi (8,851.80 km) |
| Rowlett to Orta Nova | 5,741.91 mi (9,240.71 km) |
| Rowlett to Orte | 5,558.70 mi (8,945.86 km) |
| Rowlett to Ortona | 5,645.35 mi (9,085.31 km) |
| Rowlett to Orvieto | 5,536.84 mi (8,910.68 km) |
| Rowlett to Orzinuovi | 5,341.58 mi (8,596.44 km) |
| Rowlett to Osimo | 5,561.03 mi (8,949.61 km) |
| Rowlett to Ospitaletto | 5,341.11 mi (8,595.68 km) |
| Rowlett to Ostuni | 5,843.66 mi (9,404.46 km) |
| Rowlett to Ottaviano | 5,711.91 mi (9,192.43 km) |
| Rowlett to Ovada | 5,318.96 mi (8,560.05 km) |
| Rowlett to Ozieri | 5,491.49 mi (8,837.70 km) |
| Rowlett to Paceco | 5,750.45 mi (9,254.46 km) |
