| Illescas to Bougival | 671.81 mi (1,081.17 km) |
| Illescas to Bouguenais | 500.17 mi (804.95 km) |
| Illescas to Boulogne-Billancourt | 672.19 mi (1,081.78 km) |
| Illescas to Boulogne-sur-Mer | 778.68 mi (1,253.16 km) |
| Illescas to Bourg-de-Peage | 565.02 mi (909.32 km) |
| Illescas to Bourg-en-Bresse | 620.22 mi (998.14 km) |
| Illescas to Bourg-la-Reine | 670.45 mi (1,078.99 km) |
| Illescas to Bourg-les-Valence | 555.27 mi (893.62 km) |
| Illescas to Bourges | 573.09 mi (922.30 km) |
| Illescas to Bourgoin-Jallieu | 595.67 mi (958.63 km) |
| Illescas to Bressuire | 493.75 mi (794.62 km) |
| Illescas to Brest | 572.55 mi (921.42 km) |
| Illescas to Bretigny-sur-Orge | 660.11 mi (1,062.35 km) |
| Illescas to Breuillet | 654.37 mi (1,053.11 km) |
| Illescas to Briancon | 626.42 mi (1,008.13 km) |
