| North Mankato to Nuth | 4,312.44 mi (6,940.20 km) |
| North Mankato to Oegstgeest | 4,211.48 mi (6,777.72 km) |
| North Mankato to Oirschot | 4,268.06 mi (6,868.78 km) |
| North Mankato to Oisterwijk | 4,261.18 mi (6,857.71 km) |
| North Mankato to Oldebroek | 4,249.50 mi (6,838.90 km) |
| North Mankato to Oldenzaal | 4,289.89 mi (6,903.91 km) |
| North Mankato to Ommen | 4,264.19 mi (6,862.55 km) |
| North Mankato to Oosterend | 4,232.38 mi (6,811.36 km) |
| North Mankato to Oosterhout | 4,246.88 mi (6,834.69 km) |
| North Mankato to Oosterwolde | 4,240.45 mi (6,824.35 km) |
| North Mankato to Oostzaan | 4,215.63 mi (6,784.40 km) |
| North Mankato to Opmeer | 4,207.10 mi (6,770.68 km) |
| North Mankato to Oss | 4,264.54 mi (6,863.12 km) |
| North Mankato to Oud-Beijerland | 4,224.01 mi (6,797.89 km) |
| North Mankato to Oudenbosch | 4,237.54 mi (6,819.66 km) |
