TUI's LTN program has certainly reduced over the last few Summers with various reasons apparent. The main one being TUI now uses EZY for many holidays ex LTN to a lot of destinations previously flown in-house. This also allows more flexibility with holiday duration's to the more popular destinations. This year, apart from the second TUI aircraft based during the six weeks of the peak Summer holidays, outside of this period there are a number of "W" pattern flights operated by non-based aircraft on at least two days a week (two on Fridays) Also, next Summer will reportedly see only 737's based with the 757's planned to be operated only from LGW, MAN & BHX.