| Portsmouth to Bahce | 2,065.04 mi (3,323.35 km) |
| Portsmouth to Bahcesaray | 2,294.09 mi (3,691.99 km) |
| Portsmouth to Balikesir | 1,592.76 mi (2,563.29 km) |
| Portsmouth to Balya | 1,575.26 mi (2,535.13 km) |
| Portsmouth to Banaz | 1,709.60 mi (2,751.33 km) |
| Portsmouth to Bandirma | 1,565.82 mi (2,519.95 km) |
| Portsmouth to Bartin | 1,701.00 mi (2,737.49 km) |
| Portsmouth to Baskale | 2,350.00 mi (3,781.96 km) |
| Portsmouth to Baskil | 2,103.01 mi (3,384.47 km) |
| Portsmouth to Basmakci | 1,757.69 mi (2,828.73 km) |
| Portsmouth to Batman | 2,231.42 mi (3,591.12 km) |
| Portsmouth to Battalgazi | 2,089.36 mi (3,362.49 km) |
| Portsmouth to Bayat | 1,822.16 mi (2,932.48 km) |
| Portsmouth to Bayburt | 2,096.08 mi (3,373.31 km) |
| Portsmouth to Bayindir | 1,645.74 mi (2,648.57 km) |
