| Walnut Park to Opole | 6,008.31 mi (9,669.45 km) |
| Walnut Park to Orzesze | 6,058.15 mi (9,749.66 km) |
| Walnut Park to Osowa | 5,808.41 mi (9,347.74 km) |
| Walnut Park to Ostroda | 5,884.10 mi (9,469.54 km) |
| Walnut Park to Ostroleka | 5,956.75 mi (9,586.46 km) |
| Walnut Park to Ostrow Mazowiecka | 5,979.74 mi (9,623.46 km) |
| Walnut Park to Ostrow Wielkopolski | 5,949.90 mi (9,575.44 km) |
| Walnut Park to Ostrowiec Swietokrzyski | 6,077.28 mi (9,780.43 km) |
| Walnut Park to Ostrzeszow | 5,965.93 mi (9,601.24 km) |
| Walnut Park to Oswiecim | 6,076.32 mi (9,778.89 km) |
| Walnut Park to Otwock | 6,005.30 mi (9,664.59 km) |
| Walnut Park to Ozarow Mazowiecki | 5,988.77 mi (9,637.99 km) |
| Walnut Park to Ozimek | 6,014.98 mi (9,680.18 km) |
| Walnut Park to Ozorkow | 5,967.55 mi (9,603.84 km) |
| Walnut Park to Pabianice | 5,988.06 mi (9,636.85 km) |
