Major airlines, such as Delta, American Airlines, and Emirates, operate vast fleets of aircraft, ranging from small regional jets to long-haul wide-body planes. These airlines offer a variety of services, including economy, business, and first-class seating, as well as amenities like in-flight entertainment, meals, and Wi-Fi. Additionally, airlines provide a range of loyalty programs to reward frequent travelers, such as frequent flyer miles and elite status benefits.
Source: https://support.google.com/assistant/thread/305925379?hl=en&sjid=8202469768798848349-AP
