| Rolling Meadows to Orbetello | 4,742.46 mi (7,632.24 km) |
| Rolling Meadows to Oria | 5,083.15 mi (8,180.55 km) |
| Rolling Meadows to Oristano | 4,742.35 mi (7,632.08 km) |
| Rolling Meadows to Orta Nova | 4,969.87 mi (7,998.23 km) |
| Rolling Meadows to Orte | 4,788.44 mi (7,706.25 km) |
| Rolling Meadows to Ortona | 4,872.85 mi (7,842.10 km) |
| Rolling Meadows to Orvieto | 4,766.36 mi (7,670.71 km) |
| Rolling Meadows to Orzinuovi | 4,567.83 mi (7,351.21 km) |
| Rolling Meadows to Osimo | 4,787.33 mi (7,704.47 km) |
| Rolling Meadows to Ospitaletto | 4,566.90 mi (7,349.71 km) |
| Rolling Meadows to Ostuni | 5,070.46 mi (8,160.11 km) |
| Rolling Meadows to Ottaviano | 4,942.49 mi (7,954.18 km) |
| Rolling Meadows to Ovada | 4,548.27 mi (7,319.74 km) |
| Rolling Meadows to Ozieri | 4,730.89 mi (7,613.63 km) |
| Rolling Meadows to Paceco | 4,991.31 mi (8,032.74 km) |
