| Lake in the Hills to Octeville | 3,963.71 mi (6,378.98 km) |
| Lake in the Hills to Oignies | 4,113.70 mi (6,620.37 km) |
| Lake in the Hills to Oissel | 4,080.31 mi (6,566.62 km) |
| Lake in the Hills to Olivet | 4,164.41 mi (6,701.97 km) |
| Lake in the Hills to Ollioules | 4,503.87 mi (7,248.27 km) |
| Lake in the Hills to Olonne-sur-Mer | 4,063.24 mi (6,539.15 km) |
| Lake in the Hills to Oloron-Sainte-Marie | 4,231.96 mi (6,810.69 km) |
| Lake in the Hills to Onet Village | 4,322.07 mi (6,955.71 km) |
| Lake in the Hills to Onnaing | 4,139.41 mi (6,661.74 km) |
| Lake in the Hills to Orange | 4,421.77 mi (7,116.16 km) |
| Lake in the Hills to Orchies | 4,122.97 mi (6,635.28 km) |
| Lake in the Hills to Orleans | 4,163.35 mi (6,700.27 km) |
| Lake in the Hills to Orly | 4,152.08 mi (6,682.13 km) |
| Lake in the Hills to Ormesson-sur-Marne | 4,156.24 mi (6,688.82 km) |
| Lake in the Hills to Orsay | 4,145.72 mi (6,671.90 km) |
