Yes, planes frequently "wait" in the air in what is known as a holding pattern. When an airport is congested, or there is a temporary issue like bad weather or a blocked runway, Air Traffic Control (ATC) instructs pilots to fly in an oval-shaped path at a specific altitude and location. This is common at high-traffic hubs like London Heathrow or New York’s JFK. To an observer, the plane is simply "circling," but it is a highly coordinated maneuver to keep aircraft separated and organized in a "stack." In 2026, many airports are moving toward "Linear Holding" or "Point Merge" systems, which use satellite navigation to slow planes down hundreds of miles away instead of having them circle right above the airport. This "speed management" is much more fuel-efficient and quieter for people living near the airport, though you may still experience a traditional circular hold if there is a sudden, unexpected delay on the ground.