| Salt Lake City to Orbetello | 5,681.56 mi (9,143.58 km) |
| Salt Lake City to Oria | 5,991.02 mi (9,641.61 km) |
| Salt Lake City to Oristano | 5,726.34 mi (9,215.65 km) |
| Salt Lake City to Orta Nova | 5,885.28 mi (9,471.44 km) |
| Salt Lake City to Orte | 5,718.45 mi (9,202.95 km) |
| Salt Lake City to Ortona | 5,788.33 mi (9,315.42 km) |
| Salt Lake City to Orvieto | 5,695.77 mi (9,166.45 km) |
| Salt Lake City to Orzinuovi | 5,484.41 mi (8,826.30 km) |
| Salt Lake City to Osimo | 5,698.11 mi (9,170.22 km) |
| Salt Lake City to Ospitaletto | 5,480.73 mi (8,820.38 km) |
| Salt Lake City to Ostuni | 5,976.41 mi (9,618.10 km) |
| Salt Lake City to Ottaviano | 5,872.69 mi (9,451.19 km) |
| Salt Lake City to Ovada | 5,482.54 mi (8,823.29 km) |
| Salt Lake City to Ozieri | 5,705.18 mi (9,181.60 km) |
| Salt Lake City to Paceco | 5,964.66 mi (9,599.19 km) |
