| Holyhead to Bilecik | 1,849.14 mi (2,975.91 km) |
| Holyhead to Bingol | 2,331.77 mi (3,752.62 km) |
| Holyhead to Birecik | 2,314.24 mi (3,724.42 km) |
| Holyhead to Bitlis | 2,419.50 mi (3,893.82 km) |
| Holyhead to Bodrum | 1,898.27 mi (3,054.96 km) |
| Holyhead to Bogazliyan | 2,103.72 mi (3,385.61 km) |
| Holyhead to Bolu | 1,887.89 mi (3,038.26 km) |
| Holyhead to Bolvadin | 1,957.51 mi (3,150.31 km) |
| Holyhead to Bor | 2,136.68 mi (3,438.65 km) |
| Holyhead to Borcka | 2,272.91 mi (3,657.90 km) |
| Holyhead to Boyabat | 1,984.71 mi (3,194.08 km) |
| Holyhead to Bozdogan | 1,900.59 mi (3,058.70 km) |
| Holyhead to Bozkir | 2,077.45 mi (3,343.33 km) |
| Holyhead to Bozkurt | 1,944.13 mi (3,128.78 km) |
| Holyhead to Bozuyuk | 1,862.15 mi (2,996.84 km) |
