xliioper

I think you need to provide a little more clarity here. That pricing is only true for trips that don't include a Sat night stay. Once you add Sat night, the fare drops down quite a bit (by about half). Including a Sat night stay isn't a big deal for most leisure travelers (especially when you can save $1700+). These fares are aimed at price insensitive biz flyers who fly in on a Sun or Mon and then leave on Thu or Fri because they want to spend the weekend at home.

Also, suggest you try MCO-LHR if you can't do a Sat night stay. Further, if you use google flights, you will see there are some ATL-LHR options involving VS flights that don't require a Sat night stay for cheaper fares.