Most business travelers don’t want to waste a whole day traveling. They prefer to depart from the Americas in the afternoon or evening, sleep during the flight, and land in Europe early in the morning…..@@@
For example, a flight that departs from New York at 8 p.m. can arrive in London around 8 a.m. the following day. This allows you to go directly to meetings, conferences, connections, or work activities without wasting valuable time.
Now imagine the opposite: taking off during the day and landing at night in Europe. The passenger would have to pay for a hotel immediately, sleep disoriented by the time change, and lose part of the next day recovering from exhaustion.
For airlines, that makes flying much less attractive to the most profitable customers.
Modern airplanes are designed to work non-stop
Another huge factor is the intensive use of aircraft .
A modern long-range aircraft like the Boeing 787 Dreamliner or the Boeing 777 costs hundreds of millions of dollars. Having it grounded for many hours means losing money.