| Watford to Kloten | 495.82 mi (797.94 km) |
| Watford to Koniz | 478.92 mi (770.75 km) |
| Watford to Kreuzlingen | 509.52 mi (820.00 km) |
| Watford to Kriens | 504.00 mi (811.12 km) |
| Watford to Kusnacht | 501.69 mi (807.39 km) |
| Watford to Kussnacht | 507.69 mi (817.04 km) |
| Watford to La Chaux-de-Fonds | 451.81 mi (727.12 km) |
| Watford to La Tour-de-Peilz | 486.85 mi (783.51 km) |
| Watford to Lachen | 517.19 mi (832.34 km) |
| Watford to Landecy | 479.55 mi (771.76 km) |
| Watford to Landquart | 551.99 mi (888.35 km) |
| Watford to Langenthal | 478.14 mi (769.48 km) |
| Watford to Langnau | 491.26 mi (790.60 km) |
| Watford to Lausanne | 476.07 mi (766.17 km) |
| Watford to Le Grand-Saconnex | 476.75 mi (767.26 km) |
