| Portishead to Bilecik | 1,741.03 mi (2,801.92 km) |
| Portishead to Bingol | 2,239.76 mi (3,604.54 km) |
| Portishead to Birecik | 2,212.44 mi (3,560.57 km) |
| Portishead to Bitlis | 2,329.01 mi (3,748.18 km) |
| Portishead to Bodrum | 1,776.65 mi (2,859.25 km) |
| Portishead to Bogazliyan | 2,002.87 mi (3,223.31 km) |
| Portishead to Bolu | 1,784.89 mi (2,872.50 km) |
| Portishead to Bolvadin | 1,847.24 mi (2,972.84 km) |
| Portishead to Bor | 2,030.80 mi (3,268.26 km) |
| Portishead to Borcka | 2,190.70 mi (3,525.59 km) |
| Portishead to Boyabat | 1,890.24 mi (3,042.05 km) |
| Portishead to Bozdogan | 1,782.22 mi (2,868.20 km) |
| Portishead to Bozkir | 1,965.35 mi (3,162.92 km) |
| Portishead to Bozkurt | 1,828.64 mi (2,942.91 km) |
| Portishead to Bozuyuk | 1,753.42 mi (2,821.86 km) |
