Originally Posted by
papabear
+1
Emirates might very well not allow you to board if you do not have a visa for the UK. There are hefty fines for airlines who let on passengers without visas for the final destination. EK would take a huge risk on letting you on their flight.
If you have sufficient time, I would recommend getting a Transit Visa or Visitors Visa for the UK.
But... the OP
has a visa for her final destination,
and can prove she has a booking to there by showing a printed itinerary,
and can transit airside at LGW according to the airport's own rules
and doesn't require a DATV.. so if there's any nonsense at the airport, printed copies of the relevant regulations should suffice.