Best option Kolkata London City | 14-10-24 2 Stopovers (DEL, ZRH) UK0708, LX0147, LX0464 25h 30min | 05-11-24 2 Stopovers (FRA, BOM) LH0927, LH0756, UK0771 20h 05min | Vistara, Swiss International Air Lines | ? | ₹825 found 3 days ago | Check |