| Haslett to Orbetello | 4,567.39 mi (7,350.51 km) |
| Haslett to Oria | 4,910.35 mi (7,902.44 km) |
| Haslett to Oristano | 4,563.03 mi (7,343.49 km) |
| Haslett to Orta Nova | 4,796.59 mi (7,719.37 km) |
| Haslett to Orte | 4,614.17 mi (7,425.78 km) |
| Haslett to Ortona | 4,699.82 mi (7,563.63 km) |
| Haslett to Orvieto | 4,592.20 mi (7,390.43 km) |
| Haslett to Orzinuovi | 4,395.50 mi (7,073.87 km) |
| Haslett to Osimo | 4,615.01 mi (7,427.13 km) |
| Haslett to Ospitaletto | 4,394.86 mi (7,072.84 km) |
| Haslett to Ostuni | 4,897.87 mi (7,882.36 km) |
| Haslett to Ottaviano | 4,767.83 mi (7,673.08 km) |
| Haslett to Ovada | 4,374.18 mi (7,039.56 km) |
| Haslett to Ozieri | 4,552.48 mi (7,326.51 km) |
| Haslett to Paceco | 4,812.48 mi (7,744.94 km) |
