| Elmhurst to Orbetello | 4,746.80 mi (7,639.24 km) |
| Elmhurst to Oria | 5,087.86 mi (8,188.11 km) |
| Elmhurst to Oristano | 4,745.96 mi (7,637.88 km) |
| Elmhurst to Orta Nova | 4,974.50 mi (8,005.68 km) |
| Elmhurst to Orte | 4,792.91 mi (7,713.45 km) |
| Elmhurst to Ortona | 4,877.52 mi (7,849.60 km) |
| Elmhurst to Orvieto | 4,770.84 mi (7,677.93 km) |
| Elmhurst to Orzinuovi | 4,572.58 mi (7,358.86 km) |
| Elmhurst to Osimo | 4,792.10 mi (7,712.14 km) |
| Elmhurst to Ospitaletto | 4,571.70 mi (7,357.44 km) |
| Elmhurst to Ostuni | 5,075.19 mi (8,167.73 km) |
| Elmhurst to Ottaviano | 4,946.91 mi (7,961.28 km) |
| Elmhurst to Ovada | 4,552.76 mi (7,326.97 km) |
| Elmhurst to Ozieri | 4,734.66 mi (7,619.70 km) |
| Elmhurst to Paceco | 4,995.01 mi (8,038.69 km) |
