| Derry to Bilecik | 1,985.72 mi (3,195.70 km) |
| Derry to Bingol | 2,454.25 mi (3,949.74 km) |
| Derry to Birecik | 2,444.87 mi (3,934.64 km) |
| Derry to Bitlis | 2,540.50 mi (4,088.54 km) |
| Derry to Bodrum | 2,044.67 mi (3,290.58 km) |
| Derry to Bogazliyan | 2,234.01 mi (3,595.29 km) |
| Derry to Bolu | 2,020.41 mi (3,251.54 km) |
| Derry to Bolvadin | 2,095.50 mi (3,372.38 km) |
| Derry to Bor | 2,270.90 mi (3,654.66 km) |
| Derry to Borcka | 2,387.15 mi (3,841.75 km) |
| Derry to Boyabat | 2,110.11 mi (3,395.90 km) |
| Derry to Bozdogan | 2,044.69 mi (3,290.61 km) |
| Derry to Bozkir | 2,216.61 mi (3,567.29 km) |
| Derry to Bozkurt | 2,086.06 mi (3,357.19 km) |
| Derry to Bozuyuk | 1,999.17 mi (3,217.35 km) |
