| Leavenworth to Olivares | 4,597.12 mi (7,398.35 km) |
| Leavenworth to Olivenza | 4,506.72 mi (7,252.86 km) |
| Leavenworth to Olot | 4,796.23 mi (7,718.79 km) |
| Leavenworth to Onate | 4,555.91 mi (7,332.02 km) |
| Leavenworth to Onda | 4,765.40 mi (7,669.18 km) |
| Leavenworth to Onteniente | 4,794.80 mi (7,716.48 km) |
| Leavenworth to Orihuela | 4,808.51 mi (7,738.55 km) |
| Leavenworth to Osuna | 4,652.49 mi (7,487.45 km) |
| Leavenworth to Ourense | 4,343.45 mi (6,990.11 km) |
| Leavenworth to Oviedo | 4,396.57 mi (7,075.60 km) |
| Leavenworth to Paiporta | 4,779.47 mi (7,691.82 km) |
| Leavenworth to Pajara | 4,548.25 mi (7,319.70 km) |
| Leavenworth to Palafolls | 4,827.62 mi (7,769.31 km) |
| Leavenworth to Palafrugell | 4,835.04 mi (7,781.25 km) |
| Leavenworth to Palamos | 4,836.48 mi (7,783.55 km) |
