| Storrs to Orbetello | 4,088.35 mi (6,579.56 km) |
| Storrs to Oria | 4,440.81 mi (7,146.79 km) |
| Storrs to Oristano | 4,059.75 mi (6,533.54 km) |
| Storrs to Orta Nova | 4,325.46 mi (6,961.16 km) |
| Storrs to Orte | 4,139.07 mi (6,661.19 km) |
| Storrs to Ortona | 4,230.72 mi (6,808.69 km) |
| Storrs to Orvieto | 4,117.89 mi (6,627.11 km) |
| Storrs to Orzinuovi | 3,932.68 mi (6,329.03 km) |
| Storrs to Osimo | 4,150.31 mi (6,679.28 km) |
| Storrs to Ospitaletto | 3,933.59 mi (6,330.50 km) |
| Storrs to Ostuni | 4,429.60 mi (7,128.75 km) |
| Storrs to Ottaviano | 4,289.44 mi (6,903.19 km) |
| Storrs to Ovada | 3,902.00 mi (6,279.66 km) |
| Storrs to Ozieri | 4,054.63 mi (6,525.30 km) |
| Storrs to Paceco | 4,310.49 mi (6,937.07 km) |
