| Waco to Orbetello | 5,603.55 mi (9,018.04 km) |
| Waco to Oria | 5,949.33 mi (9,574.52 km) |
| Waco to Oristano | 5,590.21 mi (8,996.58 km) |
| Waco to Orta Nova | 5,835.09 mi (9,390.67 km) |
| Waco to Orte | 5,651.46 mi (9,095.15 km) |
| Waco to Ortona | 5,738.67 mi (9,235.49 km) |
| Waco to Orvieto | 5,629.67 mi (9,060.08 km) |
| Waco to Orzinuovi | 5,435.29 mi (8,747.26 km) |
| Waco to Osimo | 5,654.68 mi (9,100.33 km) |
| Waco to Ospitaletto | 5,434.94 mi (8,746.70 km) |
| Waco to Ostuni | 5,937.12 mi (9,554.87 km) |
| Waco to Ottaviano | 5,804.43 mi (9,341.33 km) |
| Waco to Ovada | 5,411.90 mi (8,709.62 km) |
| Waco to Ozieri | 5,582.04 mi (8,983.42 km) |
| Waco to Paceco | 5,840.59 mi (9,399.52 km) |
