| Cities | Distance |
|---|---|
| Serris to Oria | 927.50 mi (1,492.67 km) |
| Serris to Oristano | 681.14 mi (1,096.19 km) |
| Serris to Orta Nova | 815.28 mi (1,312.07 km) |
| Serris to Orte | 639.57 mi (1,029.28 km) |
| Serris to Ortona | 717.86 mi (1,155.28 km) |
| Serris to Orvieto | 616.97 mi (992.91 km) |
| Serris to Orzinuovi | 411.92 mi (662.93 km) |
| Serris to Osimo | 631.35 mi (1,016.05 km) |
| Serris to Ospitaletto | 410.85 mi (661.20 km) |
| Serris to Ostuni | 914.57 mi (1,471.86 km) |
| Serris to Ottaviano | 794.53 mi (1,278.67 km) |
| Serris to Ovada | 402.11 mi (647.13 km) |
| Serris to Ozieri | 647.38 mi (1,041.85 km) |
| Serris to Paceco | 895.30 mi (1,440.84 km) |
| Serris to Pachino | 1,042.83 mi (1,678.28 km) |