| Sozopol to University Place (Washington) | 5,982.01 mi (9,627.11 km) |
| Sozopol to Upland (California) | 6,712.63 mi (10,802.94 km) |
| Sozopol to Upper Arlington (Ohio) | 5,286.05 mi (8,507.08 km) |
| Sozopol to Upper Grand Lagoon (Florida) | 5,881.17 mi (9,464.84 km) |
| Sozopol to Upper Montclair (New Jersey) | 4,903.98 mi (7,892.20 km) |
| Sozopol to Urbana (Illinois) | 5,469.84 mi (8,802.85 km) |
| Sozopol to Urbana (Maryland) | 5,097.96 mi (8,204.37 km) |
| Sozopol to Urbana (Ohio) | 5,307.67 mi (8,541.88 km) |
| Sozopol to Urbandale (Iowa) | 5,582.07 mi (8,983.48 km) |
| Sozopol to Utica (New York) | 4,843.95 mi (7,795.59 km) |
| Sozopol to Uvalde (Texas) | 6,467.30 mi (10,408.12 km) |
| Sozopol to Vacaville (California) | 6,539.64 mi (10,524.53 km) |
| Sozopol to Vadnais Heights (Minnesota) | 5,378.42 mi (8,655.74 km) |
| Sozopol to Vail (Arizona) | 6,656.21 mi (10,712.13 km) |
| Sozopol to Valdosta (Georgia) | 5,746.29 mi (9,247.76 km) |
