| Bailleston to Orbetello | 1,151.31 mi (1,852.85 km) |
| Bailleston to Oria | 1,446.83 mi (2,328.45 km) |
| Bailleston to Oristano | 1,244.46 mi (2,002.76 km) |
| Bailleston to Orta Nova | 1,342.02 mi (2,159.77 km) |
| Bailleston to Orte | 1,181.79 mi (1,901.91 km) |
| Bailleston to Ortona | 1,245.60 mi (2,004.60 km) |
| Bailleston to Orvieto | 1,159.21 mi (1,865.57 km) |
| Bailleston to Orzinuovi | 945.18 mi (1,521.12 km) |
| Bailleston to Osimo | 1,154.94 mi (1,858.70 km) |
| Bailleston to Ospitaletto | 940.38 mi (1,513.40 km) |
| Bailleston to Ostuni | 1,432.22 mi (2,304.93 km) |
| Bailleston to Ottaviano | 1,333.80 mi (2,146.55 km) |
| Bailleston to Ovada | 954.71 mi (1,536.46 km) |
| Bailleston to Ozieri | 1,210.62 mi (1,948.30 km) |
| Bailleston to Paceco | 1,455.13 mi (2,341.81 km) |
