| North Mankato to Oswego (Illinois) | 336.01 mi (540.75 km) |
| North Mankato to Oswego (New York) | 874.18 mi (1,406.85 km) |
| North Mankato to Otsego (Minnesota) | 77.74 mi (125.11 km) |
| North Mankato to Ottawa (Illinois) | 328.56 mi (528.77 km) |
| North Mankato to Ottawa (Kansas) | 390.81 mi (628.95 km) |
| North Mankato to Ottumwa (Iowa) | 233.46 mi (375.71 km) |
| North Mankato to Overland (Missouri) | 423.83 mi (682.09 km) |
| North Mankato to Overland Park (Kansas) | 367.31 mi (591.13 km) |
| North Mankato to Overlea (Maryland) | 959.94 mi (1,544.88 km) |
| North Mankato to Oviedo (Florida) | 1,285.26 mi (2,068.43 km) |
| North Mankato to Owasso (Oklahoma) | 553.46 mi (890.70 km) |
| North Mankato to Owatonna (Minnesota) | 40.54 mi (65.24 km) |
| North Mankato to Owensboro (Kentucky) | 571.72 mi (920.10 km) |
| North Mankato to Owings Mills (Maryland) | 945.37 mi (1,521.42 km) |
| North Mankato to Owosso (Michigan) | 500.03 mi (804.72 km) |
