Flights, especially long-haul "red-eye" trips, are scheduled at night for several strategic reasons. First, for business travelers, flying overnight allows them to "save a day" by arriving in the morning and heading straight to meetings. Second, night flights help airlines maximize aircraft utilization; a plane that sits idle overnight is losing money, so flying while passengers sleep is more efficient. Third, night flights often arrive during early morning arrival slots at major hubs, which are highly valuable for making connections. Geographically, flying east (e.g., NYC to London) naturally eats up time because you are flying "ahead" of the sun; a 7-hour flight plus a 5-hour time jump means a 9:00 PM departure arrives at 9:00 AM. Finally, airports often have lower landing fees and less congestion late at night, and cooler night air can actually make takeoffs more fuel-efficient for heavily loaded aircraft.