| Mankato to Nuth | 4,310.75 mi (6,937.49 km) |
| Mankato to Oegstgeest | 4,209.82 mi (6,775.06 km) |
| Mankato to Oirschot | 4,266.39 mi (6,866.09 km) |
| Mankato to Oisterwijk | 4,259.51 mi (6,855.02 km) |
| Mankato to Oldebroek | 4,247.88 mi (6,836.30 km) |
| Mankato to Oldenzaal | 4,288.29 mi (6,901.34 km) |
| Mankato to Ommen | 4,262.59 mi (6,859.97 km) |
| Mankato to Oosterend | 4,230.79 mi (6,808.80 km) |
| Mankato to Oosterhout | 4,245.20 mi (6,832.00 km) |
| Mankato to Oosterwolde | 4,238.87 mi (6,821.80 km) |
| Mankato to Oostzaan | 4,213.99 mi (6,781.77 km) |
| Mankato to Opmeer | 4,205.48 mi (6,768.06 km) |
| Mankato to Oss | 4,262.89 mi (6,860.46 km) |
| Mankato to Oud-Beijerland | 4,222.34 mi (6,795.20 km) |
| Mankato to Oudenbosch | 4,235.86 mi (6,816.96 km) |
