I am going to move to London this summer and am planning on frequently visiting friends and family in Berlin. I looked into possible flight connections and found that all the major airports (Heahtrow, Gatwick, Luton, Stansted, City and even SouthEnd) offer regular flights to and from Berlin.
Is anyone of you flying that route regularly and willing to share some tips and tricks?
For example, I would be interested in
* Time spent to go through security. Does it vary a lot between the airports?
* Passport control. Do all airports have a similar setup or are some of them quicker in handling passport and visa checks?
* Public transport to/from the airports. Is the tube (e.g. Elizabeth line) reliable in London? Or should I look into the express services like Stansted Express, Heathrow Express etc.?
I'd appreciate any advice. Thanks!