| Butler to Bicaz | 4,864.04 mi (7,827.91 km) |
| Butler to Bistrita | 4,796.12 mi (7,718.61 km) |
| Butler to Blaj | 4,815.57 mi (7,749.91 km) |
| Butler to Bocsa | 4,765.86 mi (7,669.91 km) |
| Butler to Boldesti-Scaeni | 4,944.83 mi (7,957.93 km) |
| Butler to Bolintin Vale | 4,960.42 mi (7,983.02 km) |
| Butler to Borsa | 4,779.65 mi (7,692.10 km) |
| Butler to Botosani | 4,848.07 mi (7,802.21 km) |
| Butler to Brad | 4,775.20 mi (7,684.95 km) |
| Butler to Bragadiru | 4,972.05 mi (8,001.73 km) |
| Butler to Braila | 5,005.56 mi (8,055.68 km) |
| Butler to Brasov | 4,901.26 mi (7,887.82 km) |
| Butler to Breaza | 4,924.10 mi (7,924.57 km) |
| Butler to Bucharest | 4,974.16 mi (8,005.14 km) |
| Butler to Buftea | 4,962.24 mi (7,985.96 km) |
