There are two airlines now flying from London Heathrow and London Gatwick to Almaty and Nur Sultan in Kazakhstan. Air Astana fly from London to Nur Sultan (Astana) and then continues to Almaty. Turkish Airways offers regular weekly flights from London via Istanbul in 11 hours and 35 minutes. Flights leave London Airports for Almaty and vice versa five days a week.
There are also direct flights that connect to Nur Sultan the capital city from Frankfurt and Moscow.