| Willowbrook to Opole | 6,011.59 mi (9,674.72 km) |
| Willowbrook to Orzesze | 6,061.43 mi (9,754.94 km) |
| Willowbrook to Osowa | 5,811.72 mi (9,353.06 km) |
| Willowbrook to Ostroda | 5,887.41 mi (9,474.86 km) |
| Willowbrook to Ostroleka | 5,960.06 mi (9,591.79 km) |
| Willowbrook to Ostrow Mazowiecka | 5,983.05 mi (9,628.79 km) |
| Willowbrook to Ostrow Wielkopolski | 5,953.18 mi (9,580.72 km) |
| Willowbrook to Ostrowiec Swietokrzyski | 6,080.58 mi (9,785.75 km) |
| Willowbrook to Ostrzeszow | 5,969.22 mi (9,606.53 km) |
| Willowbrook to Oswiecim | 6,079.60 mi (9,784.17 km) |
| Willowbrook to Otwock | 6,008.61 mi (9,669.92 km) |
| Willowbrook to Ozarow Mazowiecki | 5,992.07 mi (9,643.31 km) |
| Willowbrook to Ozimek | 6,018.26 mi (9,685.46 km) |
| Willowbrook to Ozorkow | 5,970.84 mi (9,609.14 km) |
| Willowbrook to Pabianice | 5,991.35 mi (9,642.15 km) |
