| Great Falls to Bicaz | 5,426.17 mi (8,732.58 km) |
| Great Falls to Bistrita | 5,377.09 mi (8,653.59 km) |
| Great Falls to Blaj | 5,421.59 mi (8,725.20 km) |
| Great Falls to Bocsa | 5,417.07 mi (8,717.93 km) |
| Great Falls to Boldesti-Scaeni | 5,539.81 mi (8,915.46 km) |
| Great Falls to Bolintin Vale | 5,569.21 mi (8,962.78 km) |
| Great Falls to Borsa | 5,349.16 mi (8,608.63 km) |
| Great Falls to Botosani | 5,387.49 mi (8,670.33 km) |
| Great Falls to Brad | 5,397.94 mi (8,687.14 km) |
| Great Falls to Bragadiru | 5,578.88 mi (8,978.35 km) |
| Great Falls to Braila | 5,567.91 mi (8,960.69 km) |
| Great Falls to Brasov | 5,491.53 mi (8,837.77 km) |
| Great Falls to Breaza | 5,521.83 mi (8,886.53 km) |
| Great Falls to Bucharest | 5,578.06 mi (8,977.02 km) |
| Great Falls to Buftea | 5,566.12 mi (8,957.81 km) |
