| Roudnice nad Labem to Joliet (Illinois) | 4,552.91 mi (7,327.20 km) |
| Roudnice nad Labem to Jonesboro (Arkansas) | 4,937.56 mi (7,946.24 km) |
| Roudnice nad Labem to Joplin (Missouri) | 5,007.25 mi (8,058.39 km) |
| Roudnice nad Labem to Joppatowne (Maryland) | 4,217.60 mi (6,787.57 km) |
| Roudnice nad Labem to Juana Díaz (Puerto Rico) | 4,861.59 mi (7,823.97 km) |
| Roudnice nad Labem to Junction City (Kansas) | 4,982.70 mi (8,018.88 km) |
| Roudnice nad Labem to Juneau (Alaska) | 4,705.63 mi (7,572.99 km) |
| Roudnice nad Labem to Jupiter (Florida) | 4,988.74 mi (8,028.61 km) |
| Roudnice nad Labem to Jupiter Farms (Florida) | 4,992.99 mi (8,035.44 km) |
| Roudnice nad Labem to Jurupa Valley (California) | 5,903.49 mi (9,500.74 km) |
| Roudnice nad Labem to Justice (Illinois) | 4,530.14 mi (7,290.56 km) |
| Roudnice nad Labem to Kahului (Hawaii) | 7,478.15 mi (12,034.93 km) |
| Roudnice nad Labem to Kailua (Hawaii) | 7,450.67 mi (11,990.70 km) |
| Roudnice nad Labem to Kalamazoo (Michigan) | 4,424.20 mi (7,120.07 km) |
| Roudnice nad Labem to Kalispell (Montana) | 4,970.76 mi (7,999.67 km) |
