| Fort Dodge to Oswego (Illinois) | 304.63 mi (490.26 km) |
| Fort Dodge to Oswego (New York) | 894.09 mi (1,438.90 km) |
| Fort Dodge to Otsego (Minnesota) | 192.43 mi (309.68 km) |
| Fort Dodge to Ottawa (Illinois) | 286.22 mi (460.62 km) |
| Fort Dodge to Ottawa (Kansas) | 276.14 mi (444.40 km) |
| Fort Dodge to Ottumwa (Iowa) | 137.10 mi (220.63 km) |
| Fort Dodge to Overland (Missouri) | 330.50 mi (531.88 km) |
| Fort Dodge to Overland Park (Kansas) | 251.74 mi (405.14 km) |
| Fort Dodge to Overlea (Maryland) | 945.02 mi (1,520.87 km) |
| Fort Dodge to Oviedo (Florida) | 1,200.51 mi (1,932.03 km) |
| Fort Dodge to Owasso (Oklahoma) | 438.87 mi (706.29 km) |
| Fort Dodge to Owatonna (Minnesota) | 119.13 mi (191.71 km) |
| Fort Dodge to Owensboro (Kentucky) | 496.48 mi (799.01 km) |
| Fort Dodge to Owings Mills (Maryland) | 930.13 mi (1,496.90 km) |
| Fort Dodge to Owosso (Michigan) | 508.11 mi (817.72 km) |
