| Union City to Opole | 5,871.31 mi (9,448.95 km) |
| Union City to Orzesze | 5,920.31 mi (9,527.82 km) |
| Union City to Osowa | 5,659.38 mi (9,107.89 km) |
| Union City to Ostroda | 5,733.23 mi (9,226.75 km) |
| Union City to Ostroleka | 5,803.36 mi (9,339.61 km) |
| Union City to Ostrow Mazowiecka | 5,826.15 mi (9,376.29 km) |
| Union City to Ostrow Wielkopolski | 5,810.41 mi (9,350.96 km) |
| Union City to Ostrowiec Swietokrzyski | 5,929.87 mi (9,543.20 km) |
| Union City to Ostrzeszow | 5,826.79 mi (9,377.32 km) |
| Union City to Oswiecim | 5,937.45 mi (9,555.41 km) |
| Union City to Otwock | 5,855.18 mi (9,423.00 km) |
| Union City to Ozarow Mazowiecki | 5,839.65 mi (9,398.01 km) |
| Union City to Ozimek | 5,877.18 mi (9,458.40 km) |
| Union City to Ozorkow | 5,823.20 mi (9,371.53 km) |
| Union City to Pabianice | 5,844.31 mi (9,405.51 km) |
