| North Mankato to Oerlinghausen | 4,362.80 mi (7,021.25 km) |
| North Mankato to Oestrich-Winkel | 4,424.80 mi (7,121.03 km) |
| North Mankato to Offenburg | 4,489.13 mi (7,224.56 km) |
| North Mankato to Oftersheim | 4,472.49 mi (7,197.77 km) |
| North Mankato to Ohrdruf | 4,481.54 mi (7,212.34 km) |
| North Mankato to Ohringen | 4,511.79 mi (7,261.02 km) |
| North Mankato to Olbernhau | 4,574.89 mi (7,362.57 km) |
| North Mankato to Olching | 4,619.65 mi (7,434.61 km) |
| North Mankato to Oldenburg | 4,297.75 mi (6,916.57 km) |
| North Mankato to Oldenburg in Holstein | 4,334.15 mi (6,975.15 km) |
| North Mankato to Olfen | 4,330.29 mi (6,968.93 km) |
| North Mankato to Olpe | 4,375.35 mi (7,041.44 km) |
| North Mankato to Olsberg | 4,383.13 mi (7,053.96 km) |
| North Mankato to Oranienburg | 4,476.76 mi (7,204.65 km) |
| North Mankato to Ortenberg | 4,445.65 mi (7,154.58 km) |
