| Nova Gorica to Orangevale (California) | 5,954.92 mi (9,583.53 km) |
| Nova Gorica to Orchards (Washington) | 5,566.29 mi (8,958.08 km) |
| Nova Gorica to Orcutt (California) | 6,162.01 mi (9,916.79 km) |
| Nova Gorica to Oregon (Ohio) | 4,529.76 mi (7,289.94 km) |
| Nova Gorica to Oregon (Wisconsin) | 4,697.77 mi (7,560.33 km) |
| Nova Gorica to Oregon City (Oregon) | 5,588.69 mi (8,994.13 km) |
| Nova Gorica to Orem (Utah) | 5,589.58 mi (8,995.56 km) |
| Nova Gorica to Orinda (California) | 6,029.00 mi (9,702.73 km) |
| Nova Gorica to Orland Park (Illinois) | 4,702.55 mi (7,568.02 km) |
| Nova Gorica to Orlando (Florida) | 5,054.94 mi (8,135.14 km) |
| Nova Gorica to Ormond Beach (Florida) | 5,005.53 mi (8,055.63 km) |
| Nova Gorica to Oro Valley (Arizona) | 6,012.59 mi (9,676.32 km) |
| Nova Gorica to Oroville (California) | 5,915.16 mi (9,519.53 km) |
| Nova Gorica to Oshkosh (Wisconsin) | 4,615.86 mi (7,428.52 km) |
| Nova Gorica to Oskaloosa (Iowa) | 4,895.97 mi (7,879.29 km) |
