U2 LGW-JER
I doubt there would be an EZY lgw-jer route. They tried LTN-JER and that didn;t last.
EZY from LGW-JER would bring no benefit as you cannot through check luggage even onto their onward flights. Even if they did they need 4 a day as there would be no point.
There could be Man-JER or even EDI-JER and maybe JER-NCE or Jer-BCN or AGP but LGW-JER nah!