| Usak to Octeville | 1,698.59 mi (2,733.62 km) |
| Usak to Oignies | 1,521.60 mi (2,448.78 km) |
| Usak to Oissel | 1,575.15 mi (2,534.95 km) |
| Usak to Olivet | 1,511.60 mi (2,432.68 km) |
| Usak to Ollioules | 1,263.52 mi (2,033.45 km) |
| Usak to Olonne-sur-Mer | 1,663.07 mi (2,676.46 km) |
| Usak to Oloron-Sainte-Marie | 1,588.28 mi (2,556.09 km) |
| Usak to Onet Village | 1,434.27 mi (2,308.24 km) |
| Usak to Onnaing | 1,494.87 mi (2,405.76 km) |
| Usak to Orange | 1,323.50 mi (2,129.96 km) |
| Usak to Orchies | 1,511.55 mi (2,432.61 km) |
| Usak to Orleans | 1,511.90 mi (2,433.16 km) |
| Usak to Orly | 1,506.61 mi (2,424.65 km) |
| Usak to Ormesson-sur-Marne | 1,501.16 mi (2,415.88 km) |
| Usak to Orsay | 1,514.61 mi (2,437.54 km) |
