| Louisville to Bicaz | 5,208.50 mi (8,382.27 km) |
| Louisville to Bistrita | 5,141.52 mi (8,274.48 km) |
| Louisville to Blaj | 5,162.68 mi (8,308.53 km) |
| Louisville to Bocsa | 5,115.45 mi (8,232.52 km) |
| Louisville to Boldesti-Scaeni | 5,291.82 mi (8,516.36 km) |
| Louisville to Bolintin Vale | 5,308.33 mi (8,542.93 km) |
| Louisville to Borsa | 5,124.20 mi (8,246.60 km) |
| Louisville to Botosani | 5,190.86 mi (8,353.89 km) |
| Louisville to Brad | 5,123.17 mi (8,244.94 km) |
| Louisville to Bragadiru | 5,319.89 mi (8,561.53 km) |
| Louisville to Braila | 5,350.73 mi (8,611.17 km) |
| Louisville to Brasov | 5,247.77 mi (8,445.47 km) |
| Louisville to Breaza | 5,271.17 mi (8,483.13 km) |
| Louisville to Bucharest | 5,321.84 mi (8,564.67 km) |
| Louisville to Buftea | 5,309.87 mi (8,545.40 km) |
