Airlines Why Do Planes Fly At 35,000 Feet? by SharonKurheg May 10, 2025 by SharonKurheg May 10, 2025 “Ladies and gentlemen, we’ve just reached our cruising altitude of 35,000 feet. I’m going to shut off the seatbelt sign, and you’re free to walk around the cabin. But please … 0 FacebookTwitterPinterestEmail