| Morristown to Octeville | 4,026.44 mi (6,479.93 km) |
| Morristown to Oignies | 4,196.74 mi (6,754.00 km) |
| Morristown to Oissel | 4,148.03 mi (6,675.62 km) |
| Morristown to Olivet | 4,221.51 mi (6,793.86 km) |
| Morristown to Ollioules | 4,534.50 mi (7,297.57 km) |
| Morristown to Olonne-sur-Mer | 4,097.46 mi (6,594.22 km) |
| Morristown to Oloron-Sainte-Marie | 4,240.44 mi (6,824.33 km) |
| Morristown to Onet Village | 4,351.41 mi (7,002.92 km) |
| Morristown to Onnaing | 4,223.44 mi (6,796.98 km) |
| Morristown to Orange | 4,456.85 mi (7,172.60 km) |
| Morristown to Orchies | 4,206.76 mi (6,770.13 km) |
| Morristown to Orleans | 4,220.81 mi (6,792.74 km) |
| Morristown to Orly | 4,218.32 mi (6,788.74 km) |
| Morristown to Ormesson-sur-Marne | 4,223.28 mi (6,796.71 km) |
| Morristown to Orsay | 4,210.96 mi (6,776.88 km) |
