| Sierra Vista Southeast to Octeville | 5,334.13 mi (8,584.45 km) |
| Sierra Vista Southeast to Oignies | 5,467.82 mi (8,799.61 km) |
| Sierra Vista Southeast to Oissel | 5,446.02 mi (8,764.53 km) |
| Sierra Vista Southeast to Olivet | 5,536.25 mi (8,909.74 km) |
| Sierra Vista Southeast to Ollioules | 5,888.26 mi (9,476.24 km) |
| Sierra Vista Southeast to Olonne-sur-Mer | 5,449.25 mi (8,769.73 km) |
| Sierra Vista Southeast to Oloron-Sainte-Marie | 5,628.61 mi (9,058.37 km) |
| Sierra Vista Southeast to Onet Village | 5,708.56 mi (9,187.04 km) |
| Sierra Vista Southeast to Onnaing | 5,492.41 mi (8,839.18 km) |
| Sierra Vista Southeast to Orange | 5,804.39 mi (9,341.27 km) |
| Sierra Vista Southeast to Orchies | 5,476.38 mi (8,813.39 km) |
| Sierra Vista Southeast to Orleans | 5,534.97 mi (8,907.68 km) |
| Sierra Vista Southeast to Orly | 5,517.98 mi (8,880.34 km) |
| Sierra Vista Southeast to Ormesson-sur-Marne | 5,521.54 mi (8,886.06 km) |
| Sierra Vista Southeast to Orsay | 5,512.39 mi (8,871.33 km) |
