| Douai to Barcellona-Pozzo di Gotto | 1,033.33 mi (1,662.98 km) |
| Douai to Bareggio | 435.10 mi (700.23 km) |
| Douai to Barga | 556.10 mi (894.96 km) |
| Douai to Bari | 919.17 mi (1,479.26 km) |
| Douai to Barletta | 889.27 mi (1,431.15 km) |
| Douai to Baronissi | 870.90 mi (1,401.57 km) |
| Douai to Barrafranca | 1,052.96 mi (1,694.58 km) |
| Douai to Bassano del Grappa | 510.20 mi (821.09 km) |
| Douai to Battipaglia | 884.71 mi (1,423.81 km) |
| Douai to Beinasco | 424.95 mi (683.89 km) |
| Douai to Bellinzago Novarese | 418.58 mi (673.64 km) |
| Douai to Belluno | 511.40 mi (823.03 km) |
| Douai to Belmonte Mezzagno | 990.42 mi (1,593.92 km) |
| Douai to Belpasso | 1,060.58 mi (1,706.84 km) |
| Douai to Belvedere Marittimo | 968.04 mi (1,557.91 km) |
