Monarch did several seasons LTN MCO flights in the nineties with the 757 via BGR. In the early 2000's there was also a short A330 series to MCO (non-stop). (Slightly off topic, the A330 was delivered with a restricted nose wheel steering angle and needed a lot of space to turn round so Monarch persuaded the LTN airport authority to paint a line on each runway dumbbell and hammer a couple of carefully placed sticks into the grass. The idea was that if you kept the nose wheel on the line, when the two sticks lined up it was time to apply full lock and the thing would achieve a 180 deg turn without going off the pavement. Crude, but worked well. Eventually the restriction was removed and the sticks no longer needed). Monarch A330's were however not frequent visitors to LTN.