| Sun Valley to Orbetello | 5,991.39 mi (9,642.20 km) |
| Sun Valley to Oria | 6,286.58 mi (10,117.28 km) |
| Sun Valley to Oristano | 6,051.34 mi (9,738.69 km) |
| Sun Valley to Orta Nova | 6,184.67 mi (9,953.27 km) |
| Sun Valley to Orte | 6,024.74 mi (9,695.88 km) |
| Sun Valley to Ortona | 6,088.81 mi (9,799.00 km) |
| Sun Valley to Orvieto | 6,002.09 mi (9,659.43 km) |
| Sun Valley to Orzinuovi | 5,788.61 mi (9,315.86 km) |
| Sun Valley to Osimo | 5,997.95 mi (9,652.77 km) |
| Sun Valley to Ospitaletto | 5,784.03 mi (9,308.49 km) |
| Sun Valley to Ostuni | 6,271.46 mi (10,092.94 km) |
| Sun Valley to Ottaviano | 6,177.42 mi (9,941.60 km) |
| Sun Valley to Ovada | 5,792.78 mi (9,322.58 km) |
| Sun Valley to Ozieri | 6,026.99 mi (9,699.51 km) |
| Sun Valley to Paceco | 6,283.72 mi (10,112.68 km) |
