| Highland Park to Octeville | 3,942.96 mi (6,345.58 km) |
| Highland Park to Oignies | 4,093.78 mi (6,588.31 km) |
| Highland Park to Oissel | 4,059.78 mi (6,533.59 km) |
| Highland Park to Olivet | 4,143.52 mi (6,668.35 km) |
| Highland Park to Ollioules | 4,482.15 mi (7,213.32 km) |
| Highland Park to Olonne-sur-Mer | 4,041.50 mi (6,504.16 km) |
| Highland Park to Oloron-Sainte-Marie | 4,209.42 mi (6,774.41 km) |
| Highland Park to Onet Village | 4,300.25 mi (6,920.59 km) |
| Highland Park to Onnaing | 4,119.54 mi (6,629.77 km) |
| Highland Park to Orange | 4,400.18 mi (7,081.41 km) |
| Highland Park to Orchies | 4,103.09 mi (6,603.28 km) |
| Highland Park to Orleans | 4,142.47 mi (6,666.67 km) |
| Highland Park to Orly | 4,131.53 mi (6,649.06 km) |
| Highland Park to Ormesson-sur-Marne | 4,135.72 mi (6,655.80 km) |
| Highland Park to Orsay | 4,125.13 mi (6,638.76 km) |
