| Hammond to Opole | 4,642.41 mi (7,471.23 km) |
| Hammond to Orzesze | 4,692.81 mi (7,552.35 km) |
| Hammond to Osowa | 4,499.86 mi (7,241.83 km) |
| Hammond to Ostroda | 4,578.60 mi (7,368.55 km) |
| Hammond to Ostroleka | 4,657.32 mi (7,495.23 km) |
| Hammond to Ostrow Mazowiecka | 4,679.81 mi (7,531.43 km) |
| Hammond to Ostrow Wielkopolski | 4,596.28 mi (7,397.01 km) |
| Hammond to Ostrowiec Swietokrzyski | 4,747.33 mi (7,640.09 km) |
| Hammond to Ostrzeszow | 4,610.18 mi (7,419.37 km) |
| Hammond to Oswiecim | 4,713.87 mi (7,586.24 km) |
| Hammond to Otwock | 4,689.98 mi (7,547.79 km) |
| Hammond to Ozarow Mazowiecki | 4,670.39 mi (7,516.26 km) |
| Hammond to Ozimek | 4,651.70 mi (7,486.18 km) |
| Hammond to Ozorkow | 4,631.61 mi (7,453.85 km) |
| Hammond to Pabianice | 4,648.71 mi (7,481.38 km) |
