| Sempeter pri Gorici to Orangevale (California) | 5,956.35 mi (9,585.83 km) |
| Sempeter pri Gorici to Orchards (Washington) | 5,567.81 mi (8,960.52 km) |
| Sempeter pri Gorici to Orcutt (California) | 6,163.38 mi (9,919.00 km) |
| Sempeter pri Gorici to Oregon (Ohio) | 4,530.64 mi (7,291.36 km) |
| Sempeter pri Gorici to Oregon (Wisconsin) | 4,698.78 mi (7,561.95 km) |
| Sempeter pri Gorici to Oregon City (Oregon) | 5,590.21 mi (8,996.58 km) |
| Sempeter pri Gorici to Orem (Utah) | 5,590.88 mi (8,997.65 km) |
| Sempeter pri Gorici to Orinda (California) | 6,030.43 mi (9,705.04 km) |
| Sempeter pri Gorici to Orland Park (Illinois) | 4,703.50 mi (7,569.55 km) |
| Sempeter pri Gorici to Orlando (Florida) | 5,055.46 mi (8,135.98 km) |
| Sempeter pri Gorici to Ormond Beach (Florida) | 5,006.07 mi (8,056.50 km) |
| Sempeter pri Gorici to Oro Valley (Arizona) | 6,013.76 mi (9,678.22 km) |
| Sempeter pri Gorici to Oroville (California) | 5,916.60 mi (9,521.85 km) |
| Sempeter pri Gorici to Oshkosh (Wisconsin) | 4,616.88 mi (7,430.16 km) |
| Sempeter pri Gorici to Oskaloosa (Iowa) | 4,896.99 mi (7,880.94 km) |
