| Mankato to Oerlinghausen | 4,361.22 mi (7,018.71 km) |
| Mankato to Oestrich-Winkel | 4,423.12 mi (7,118.33 km) |
| Mankato to Offenburg | 4,487.40 mi (7,221.77 km) |
| Mankato to Oftersheim | 4,470.80 mi (7,195.05 km) |
| Mankato to Ohrdruf | 4,479.95 mi (7,209.78 km) |
| Mankato to Ohringen | 4,510.11 mi (7,258.32 km) |
| Mankato to Olbernhau | 4,573.35 mi (7,360.10 km) |
| Mankato to Olching | 4,617.97 mi (7,431.91 km) |
| Mankato to Oldenburg | 4,296.21 mi (6,914.09 km) |
| Mankato to Oldenburg in Holstein | 4,332.71 mi (6,972.83 km) |
| Mankato to Olfen | 4,328.67 mi (6,966.32 km) |
| Mankato to Olpe | 4,373.71 mi (7,038.81 km) |
| Mankato to Olsberg | 4,381.52 mi (7,051.37 km) |
| Mankato to Oranienburg | 4,475.31 mi (7,202.31 km) |
| Mankato to Ortenberg | 4,444.01 mi (7,151.94 km) |
