Flight attendants say long overnight flights are best
As one flight attendant tells Travel + Leisure, for those looking to join the mile high club, long flights that are near-empty are best. And if it’s a red-eye flight, you’re likely to have better luck. “A lot of them are overnight, so people have time to drink, the cabin gets dark, and off you go,” suggests the attendant.
Another flight attendant also suggests if you’re flying on an international red-eye flight, the attendants take their breaks after the first meal service. Wait for the cabin lights to go out in the front of the plane, and then proceed.