| Flowing Wells to Oswego (Illinois) | 1,403.49 mi (2,258.70 km) |
| Flowing Wells to Oswego (New York) | 2,016.03 mi (3,244.49 km) |
| Flowing Wells to Otsego (Minnesota) | 1,291.16 mi (2,077.92 km) |
| Flowing Wells to Ottawa (Illinois) | 1,371.96 mi (2,207.95 km) |
| Flowing Wells to Ottawa (Kansas) | 985.81 mi (1,586.51 km) |
| Flowing Wells to Ottumwa (Iowa) | 1,190.25 mi (1,915.53 km) |
| Flowing Wells to Overland (Missouri) | 1,239.18 mi (1,994.27 km) |
| Flowing Wells to Overland Park (Kansas) | 1,021.99 mi (1,644.74 km) |
| Flowing Wells to Overlea (Maryland) | 1,980.09 mi (3,186.64 km) |
| Flowing Wells to Oviedo (Florida) | 1,787.80 mi (2,877.19 km) |
| Flowing Wells to Owasso (Oklahoma) | 908.24 mi (1,461.68 km) |
| Flowing Wells to Owatonna (Minnesota) | 1,258.69 mi (2,025.67 km) |
| Flowing Wells to Owensboro (Kentucky) | 1,399.27 mi (2,251.90 km) |
| Flowing Wells to Owings Mills (Maryland) | 1,965.70 mi (3,163.49 km) |
| Flowing Wells to Owosso (Michigan) | 1,633.94 mi (2,629.57 km) |
