| University of California-Santa Barbara to Octeville | 5,510.18 mi (8,867.77 km) |
| University of California-Santa Barbara to Oignies | 5,617.98 mi (9,041.27 km) |
| University of California-Santa Barbara to Oissel | 5,612.97 mi (9,033.20 km) |
| University of California-Santa Barbara to Olivet | 5,711.03 mi (9,191.01 km) |
| University of California-Santa Barbara to Ollioules | 6,079.20 mi (9,783.54 km) |
| University of California-Santa Barbara to Olonne-sur-Mer | 5,650.11 mi (9,092.97 km) |
| University of California-Santa Barbara to Oloron-Sainte-Marie | 5,849.78 mi (9,414.30 km) |
| University of California-Santa Barbara to Onet Village | 5,906.33 mi (9,505.32 km) |
| University of California-Santa Barbara to Onnaing | 5,640.59 mi (9,077.66 km) |
| University of California-Santa Barbara to Orange | 5,993.28 mi (9,645.25 km) |
| University of California-Santa Barbara to Orchies | 5,625.43 mi (9,053.25 km) |
| University of California-Santa Barbara to Orleans | 5,709.42 mi (9,188.42 km) |
| University of California-Santa Barbara to Orly | 5,683.91 mi (9,147.37 km) |
| University of California-Santa Barbara to Ormesson-sur-Marne | 5,686.52 mi (9,151.56 km) |
| University of California-Santa Barbara to Orsay | 5,679.56 mi (9,140.37 km) |
