| Waterville to Opole | 3,858.16 mi (6,209.10 km) |
| Waterville to Orzesze | 3,907.37 mi (6,288.30 km) |
| Waterville to Osowa | 3,749.26 mi (6,033.84 km) |
| Waterville to Ostroda | 3,826.75 mi (6,158.55 km) |
| Waterville to Ostroleka | 3,905.78 mi (6,285.74 km) |
| Waterville to Ostrow Mazowiecka | 3,927.24 mi (6,320.29 km) |
| Waterville to Ostrow Wielkopolski | 3,819.53 mi (6,146.93 km) |
| Waterville to Ostrowiec Swietokrzyski | 3,977.59 mi (6,401.31 km) |
| Waterville to Ostrzeszow | 3,831.93 mi (6,166.90 km) |
| Waterville to Oswiecim | 3,929.22 mi (6,323.47 km) |
| Waterville to Otwock | 3,929.35 mi (6,323.67 km) |
| Waterville to Ozarow Mazowiecki | 3,908.87 mi (6,290.72 km) |
| Waterville to Ozimek | 3,868.47 mi (6,225.69 km) |
| Waterville to Ozorkow | 3,862.57 mi (6,216.21 km) |
| Waterville to Pabianice | 3,877.43 mi (6,240.12 km) |
