For certain nationalities transiting through a UK airport without passing border control.
A DATV is required by some nationalities to transit through a UK airport without passing UK border control. It is for a single airside transit only and does not allow entry to the UK.
Whether you need a DATV depends on nationality, travel route and onward permissions. Check current requirements before booking travel.
You must remain airside in the international transit area and catch your onward flight; you cannot pass border control or stay in the UK.
Apply online with flight details and proof of onward travel/entry to your destination if required.