| Humble to Opole | 5,540.53 mi (8,916.62 km) |
| Humble to Orzesze | 5,590.66 mi (8,997.31 km) |
| Humble to Osowa | 5,405.98 mi (8,700.09 km) |
| Humble to Ostroda | 5,484.63 mi (8,826.66 km) |
| Humble to Ostroleka | 5,563.55 mi (8,953.67 km) |
| Humble to Ostrow Mazowiecka | 5,585.89 mi (8,989.62 km) |
| Humble to Ostrow Wielkopolski | 5,496.52 mi (8,845.80 km) |
| Humble to Ostrowiec Swietokrzyski | 5,649.73 mi (9,092.37 km) |
| Humble to Ostrzeszow | 5,510.03 mi (8,867.53 km) |
| Humble to Oswiecim | 5,612.01 mi (9,031.66 km) |
| Humble to Otwock | 5,594.42 mi (9,003.34 km) |
| Humble to Ozarow Mazowiecki | 5,574.59 mi (8,971.44 km) |
| Humble to Ozimek | 5,550.15 mi (8,932.11 km) |
| Humble to Ozorkow | 5,533.96 mi (8,906.05 km) |
| Humble to Pabianice | 5,550.53 mi (8,932.72 km) |
