Originally Posted by
underfire
TUI flies short hops, actually, the split scimitar/winglet is a detriment...(ie the weight/constraints/benefit)
United flies them, just not certain how many ac have been retrofit with them, and/or to any benefit.
The vast majority uf UA 737's have them, I only very rarely see a normal winglet nowadays. Apparently they were also looking into getting split scimitars for their 757's and 767-300, but the press release regarding those mods was slightly ambiguous.
Interestingly they haven't bothered with winglets on their A32X, but who knows how long those are still going to be around for.
Other US airlines seem to have a mix: WN, AS and DL all seem to have a jumble of winglets and split-scimitars, not sure which variant is dominant.