| Evanston to Orbetello | 4,730.38 mi (7,612.81 km) |
| Evanston to Oria | 5,071.44 mi (8,161.70 km) |
| Evanston to Oristano | 4,729.57 mi (7,611.51 km) |
| Evanston to Orta Nova | 4,958.08 mi (7,979.26 km) |
| Evanston to Orte | 4,776.49 mi (7,687.02 km) |
| Evanston to Ortona | 4,861.10 mi (7,823.18 km) |
| Evanston to Orvieto | 4,754.42 mi (7,651.51 km) |
| Evanston to Orzinuovi | 4,556.17 mi (7,332.45 km) |
| Evanston to Osimo | 4,775.69 mi (7,685.72 km) |
| Evanston to Ospitaletto | 4,555.29 mi (7,331.02 km) |
| Evanston to Ostuni | 5,058.78 mi (8,141.32 km) |
| Evanston to Ottaviano | 4,930.49 mi (7,934.85 km) |
| Evanston to Ovada | 4,536.35 mi (7,300.54 km) |
| Evanston to Ozieri | 4,718.27 mi (7,593.32 km) |
| Evanston to Paceco | 4,978.62 mi (8,012.32 km) |
