| Streator to Orbetello | 4,816.02 mi (7,750.64 km) |
| Streator to Oria | 5,157.42 mi (8,300.07 km) |
| Streator to Oristano | 4,814.29 mi (7,747.85 km) |
| Streator to Orta Nova | 5,043.99 mi (8,117.52 km) |
| Streator to Orte | 4,862.26 mi (7,825.05 km) |
| Streator to Ortona | 4,947.05 mi (7,961.50 km) |
| Streator to Orvieto | 4,840.21 mi (7,789.56 km) |
| Streator to Orzinuovi | 4,642.20 mi (7,470.90 km) |
| Streator to Osimo | 4,861.72 mi (7,824.18 km) |
| Streator to Ospitaletto | 4,641.35 mi (7,469.53 km) |
| Streator to Ostuni | 5,144.78 mi (8,279.73 km) |
| Streator to Ottaviano | 5,016.20 mi (8,072.79 km) |
| Streator to Ovada | 4,622.14 mi (7,438.61 km) |
| Streator to Ozieri | 4,803.22 mi (7,730.04 km) |
| Streator to Paceco | 5,063.47 mi (8,148.87 km) |
