| Leavenworth to Nuth | 4,587.35 mi (7,382.62 km) |
| Leavenworth to Oegstgeest | 4,488.44 mi (7,223.44 km) |
| Leavenworth to Oirschot | 4,543.98 mi (7,312.83 km) |
| Leavenworth to Oisterwijk | 4,537.23 mi (7,301.97 km) |
| Leavenworth to Oldebroek | 4,529.16 mi (7,288.98 km) |
| Leavenworth to Oldenzaal | 4,570.50 mi (7,355.51 km) |
| Leavenworth to Ommen | 4,544.73 mi (7,314.03 km) |
| Leavenworth to Oosterend | 4,513.94 mi (7,264.48 km) |
| Leavenworth to Oosterhout | 4,522.65 mi (7,278.50 km) |
| Leavenworth to Oosterwolde | 4,522.25 mi (7,277.86 km) |
| Leavenworth to Oostzaan | 4,493.92 mi (7,232.26 km) |
| Leavenworth to Opmeer | 4,486.31 mi (7,220.01 km) |
| Leavenworth to Oss | 4,541.59 mi (7,308.99 km) |
| Leavenworth to Oud-Beijerland | 4,499.72 mi (7,241.59 km) |
| Leavenworth to Oudenbosch | 4,512.69 mi (7,262.47 km) |
