| Roudnice nad Labem to Orangevale (California) | 5,713.36 mi (9,194.77 km) |
| Roudnice nad Labem to Orchards (Washington) | 5,311.15 mi (8,547.48 km) |
| Roudnice nad Labem to Orcutt (California) | 5,928.73 mi (9,541.37 km) |
| Roudnice nad Labem to Oregon (Ohio) | 4,377.02 mi (7,044.13 km) |
| Roudnice nad Labem to Oregon (Wisconsin) | 4,524.93 mi (7,282.18 km) |
| Roudnice nad Labem to Oregon City (Oregon) | 5,333.95 mi (8,584.16 km) |
| Roudnice nad Labem to Orem (Utah) | 5,367.92 mi (8,638.82 km) |
| Roudnice nad Labem to Orinda (California) | 5,786.46 mi (9,312.41 km) |
| Roudnice nad Labem to Orland Park (Illinois) | 4,538.27 mi (7,303.64 km) |
| Roudnice nad Labem to Orlando (Florida) | 4,958.59 mi (7,980.08 km) |
| Roudnice nad Labem to Ormond Beach (Florida) | 4,906.89 mi (7,896.87 km) |
| Roudnice nad Labem to Oro Valley (Arizona) | 5,810.08 mi (9,350.43 km) |
| Roudnice nad Labem to Oroville (California) | 5,671.50 mi (9,127.40 km) |
| Roudnice nad Labem to Oshkosh (Wisconsin) | 4,441.28 mi (7,147.55 km) |
| Roudnice nad Labem to Oskaloosa (Iowa) | 4,720.22 mi (7,596.45 km) |
