| Leavenworth to Opole | 5,013.46 mi (8,068.38 km) |
| Leavenworth to Orzesze | 5,064.07 mi (8,149.84 km) |
| Leavenworth to Osowa | 4,858.69 mi (7,819.31 km) |
| Leavenworth to Ostroda | 4,937.41 mi (7,945.99 km) |
| Leavenworth to Ostroleka | 5,015.50 mi (8,071.67 km) |
| Leavenworth to Ostrow Mazowiecka | 5,038.26 mi (8,108.30 km) |
| Leavenworth to Ostrow Wielkopolski | 4,964.68 mi (7,989.87 km) |
| Leavenworth to Ostrowiec Swietokrzyski | 5,112.14 mi (8,227.19 km) |
| Leavenworth to Ostrzeszow | 4,979.08 mi (8,013.05 km) |
| Leavenworth to Oswiecim | 5,084.71 mi (8,183.04 km) |
| Leavenworth to Otwock | 5,051.54 mi (8,129.66 km) |
| Leavenworth to Ozarow Mazowiecki | 5,032.41 mi (8,098.88 km) |
| Leavenworth to Ozimek | 5,022.31 mi (8,082.62 km) |
| Leavenworth to Ozorkow | 4,996.80 mi (8,041.57 km) |
| Leavenworth to Pabianice | 5,014.68 mi (8,070.35 km) |
