| Roudnice nad Labem to Oswego (Illinois) | 4,551.18 mi (7,324.42 km) |
| Roudnice nad Labem to Oswego (New York) | 4,035.19 mi (6,494.01 km) |
| Roudnice nad Labem to Otsego (Minnesota) | 4,546.53 mi (7,316.93 km) |
| Roudnice nad Labem to Ottawa (Illinois) | 4,584.99 mi (7,378.83 km) |
| Roudnice nad Labem to Ottawa (Kansas) | 4,952.00 mi (7,969.47 km) |
| Roudnice nad Labem to Ottumwa (Iowa) | 4,726.86 mi (7,607.15 km) |
| Roudnice nad Labem to Overland (Missouri) | 4,776.18 mi (7,686.51 km) |
| Roudnice nad Labem to Overland Park (Kansas) | 4,916.93 mi (7,913.04 km) |
| Roudnice nad Labem to Overlea (Maryland) | 4,226.60 mi (6,802.06 km) |
| Roudnice nad Labem to Oviedo (Florida) | 4,943.23 mi (7,955.36 km) |
| Roudnice nad Labem to Owasso (Oklahoma) | 5,095.87 mi (8,201.01 km) |
| Roudnice nad Labem to Owatonna (Minnesota) | 4,594.57 mi (7,394.25 km) |
| Roudnice nad Labem to Owensboro (Kentucky) | 4,706.91 mi (7,575.05 km) |
| Roudnice nad Labem to Owings Mills (Maryland) | 4,234.98 mi (6,815.54 km) |
| Roudnice nad Labem to Owosso (Michigan) | 4,338.32 mi (6,981.86 km) |
