| Watford to Alesd | 1,068.76 mi (1,720.00 km) |
| Watford to Alexandria | 1,297.76 mi (2,088.54 km) |
| Watford to Arad | 1,051.04 mi (1,691.48 km) |
| Watford to Avrig | 1,195.34 mi (1,923.72 km) |
| Watford to Babadag | 1,407.69 mi (2,265.46 km) |
| Watford to Bacau | 1,275.41 mi (2,052.57 km) |
| Watford to Baia Mare | 1,101.78 mi (1,773.14 km) |
| Watford to Baia-Sprie | 1,107.15 mi (1,781.78 km) |
| Watford to Baicoi | 1,280.89 mi (2,061.40 km) |
| Watford to Bailesti | 1,213.42 mi (1,952.82 km) |
| Watford to Bals | 1,232.12 mi (1,982.90 km) |
| Watford to Baraolt | 1,235.17 mi (1,987.81 km) |
| Watford to Barlad | 1,318.68 mi (2,122.21 km) |
| Watford to Beclean | 1,140.97 mi (1,836.22 km) |
| Watford to Beius | 1,079.26 mi (1,736.90 km) |
