| Sidney to Opole | 4,594.42 mi (7,394.00 km) |
| Sidney to Orzesze | 4,644.49 mi (7,474.58 km) |
| Sidney to Osowa | 4,463.66 mi (7,183.56 km) |
| Sidney to Ostroda | 4,542.18 mi (7,309.93 km) |
| Sidney to Ostroleka | 4,621.21 mi (7,437.13 km) |
| Sidney to Ostrow Mazowiecka | 4,643.41 mi (7,472.85 km) |
| Sidney to Ostrow Wielkopolski | 4,550.99 mi (7,324.11 km) |
| Sidney to Ostrowiec Swietokrzyski | 4,704.97 mi (7,571.92 km) |
| Sidney to Ostrzeszow | 4,564.37 mi (7,345.64 km) |
| Sidney to Oswiecim | 4,665.89 mi (7,509.03 km) |
| Sidney to Otwock | 4,650.76 mi (7,484.67 km) |
| Sidney to Ozarow Mazowiecki | 4,630.81 mi (7,452.56 km) |
| Sidney to Ozimek | 4,604.12 mi (7,409.61 km) |
| Sidney to Ozorkow | 4,589.23 mi (7,385.65 km) |
| Sidney to Pabianice | 4,605.56 mi (7,411.93 km) |
