| Waterville to Oskaloosa (Iowa) | 1,180.05 mi (1,899.10 km) |
| Waterville to Oswego (Illinois) | 960.17 mi (1,545.25 km) |
| Waterville to Oswego (New York) | 348.04 mi (560.12 km) |
| Waterville to Otsego (Minnesota) | 1,169.17 mi (1,881.59 km) |
| Waterville to Ottawa (Illinois) | 991.39 mi (1,595.49 km) |
| Waterville to Ottawa (Kansas) | 1,379.02 mi (2,219.32 km) |
| Waterville to Ottumwa (Iowa) | 1,175.31 mi (1,891.48 km) |
| Waterville to Overland (Missouri) | 1,139.41 mi (1,833.70 km) |
| Waterville to Overland Park (Kansas) | 1,342.44 mi (2,160.45 km) |
| Waterville to Overlea (Maryland) | 501.80 mi (807.57 km) |
| Waterville to Oviedo (Florida) | 1,267.26 mi (2,039.47 km) |
| Waterville to Owasso (Oklahoma) | 1,481.90 mi (2,384.89 km) |
| Waterville to Owatonna (Minnesota) | 1,161.49 mi (1,869.23 km) |
| Waterville to Owensboro (Kentucky) | 1,019.11 mi (1,640.09 km) |
| Waterville to Owings Mills (Maryland) | 509.37 mi (819.75 km) |
