| Watford to Kopavogur | 1,157.05 mi (1,862.10 km) |
| Watford to Reykjavik | 1,159.31 mi (1,865.72 km) |
| Watford to Saudharkrokur | 1,183.15 mi (1,904.09 km) |
| Watford to Selfoss | 1,127.87 mi (1,815.14 km) |
| Watford to An Cabhan | 332.36 mi (534.88 km) |
| Watford to Arklow | 256.46 mi (412.74 km) |
| Watford to Ashtown | 276.37 mi (444.77 km) |
| Watford to Athy | 293.15 mi (471.78 km) |
| Watford to Baile Atha Luain | 339.67 mi (546.64 km) |
| Watford to Ballincollig | 350.50 mi (564.08 km) |
| Watford to Blackrock | 268.50 mi (432.11 km) |
| Watford to Carlow | 288.08 mi (463.63 km) |
| Watford to Carrick on Shannon | 358.16 mi (576.40 km) |
| Watford to Carrigaline | 342.10 mi (550.55 km) |
| Watford to Castlebar | 401.91 mi (646.82 km) |
