| Castro Daire to Beuvry | 837.26 mi (1,347.44 km) |
| Castro Daire to Beziers | 595.48 mi (958.33 km) |
| Castro Daire to Bezons | 743.17 mi (1,196.02 km) |
| Castro Daire to Biarritz | 371.64 mi (598.09 km) |
| Castro Daire to Biganos | 437.18 mi (703.58 km) |
| Castro Daire to Billere | 420.28 mi (676.38 km) |
| Castro Daire to Biot | 790.04 mi (1,271.44 km) |
| Castro Daire to Biscarrosse | 420.02 mi (675.95 km) |
| Castro Daire to Bischheim | 933.23 mi (1,501.89 km) |
| Castro Daire to Bischwiller | 942.55 mi (1,516.88 km) |
| Castro Daire to Blagnac | 512.48 mi (824.76 km) |
| Castro Daire to Blain | 547.21 mi (880.66 km) |
| Castro Daire to Blanquefort | 461.34 mi (742.46 km) |
| Castro Daire to Blois | 650.30 mi (1,046.55 km) |
| Castro Daire to Bobigny | 749.66 mi (1,206.47 km) |
