| McPherson to Orbetello | 5,292.60 mi (8,517.61 km) |
| McPherson to Oria | 5,628.61 mi (9,058.37 km) |
| McPherson to Oristano | 5,299.99 mi (8,529.50 km) |
| McPherson to Orta Nova | 5,516.36 mi (8,877.73 km) |
| McPherson to Orte | 5,337.06 mi (8,589.17 km) |
| McPherson to Ortona | 5,419.01 mi (8,721.06 km) |
| McPherson to Orvieto | 5,314.79 mi (8,553.33 km) |
| McPherson to Orzinuovi | 5,113.06 mi (8,228.67 km) |
| McPherson to Osimo | 5,332.26 mi (8,581.44 km) |
| McPherson to Ospitaletto | 5,111.58 mi (8,226.29 km) |
| McPherson to Ostuni | 5,615.49 mi (9,037.26 km) |
| McPherson to Ottaviano | 5,491.67 mi (8,837.99 km) |
| McPherson to Ovada | 5,096.85 mi (8,202.59 km) |
| McPherson to Ozieri | 5,286.99 mi (8,508.59 km) |
| McPherson to Paceco | 5,547.94 mi (8,928.55 km) |
