| Onalaska to Octeville | 3,999.09 mi (6,435.92 km) |
| Onalaska to Oignies | 4,140.61 mi (6,663.67 km) |
| Onalaska to Oissel | 4,113.18 mi (6,619.52 km) |
| Onalaska to Olivet | 4,200.83 mi (6,760.58 km) |
| Onalaska to Ollioules | 4,548.41 mi (7,319.96 km) |
| Onalaska to Olonne-sur-Mer | 4,108.65 mi (6,612.23 km) |
| Onalaska to Oloron-Sainte-Marie | 4,285.88 mi (6,897.45 km) |
| Onalaska to Onet Village | 4,367.96 mi (7,029.56 km) |
| Onalaska to Onnaing | 4,165.81 mi (6,704.22 km) |
| Onalaska to Orange | 4,465.07 mi (7,185.84 km) |
| Onalaska to Orchies | 4,149.54 mi (6,678.04 km) |
| Onalaska to Orleans | 4,199.64 mi (6,758.67 km) |
| Onalaska to Orly | 4,185.14 mi (6,735.34 km) |
| Onalaska to Ormesson-sur-Marne | 4,188.98 mi (6,741.51 km) |
| Onalaska to Orsay | 4,179.19 mi (6,725.76 km) |
