Stansted
Just for information, travelled STN - LDY on Monday 21st: flight full on departure.
Travelled back LDY - STN on Tuesday 22nd. Counted 166 off the inbound, and could see no free seats on the outbound London flight.
These are remarkable loadings for a quiet week and much higher than would have been normal all that long ago when the Monday flight from London was normally only half-full, at best, and Tuesday was usually a very slack day. Suggests that some people are prepared to pay even the very high top-tier fares.