9LaGuardia Airport (New York, USA)
LaGuardia Airport is infamous for its outdated facilities and poor organization. Many travelers criticize LaGuardia for being overcrowded, dirty, and prone to long delays. The airport’s layout is confusing, and the terminals feel cramped, with minimal amenities for passengers during layovers. Although LaGuardia has undergone major renovations in recent years, it continues to face issues like traffic congestion, cramped seating, and frustrating delays, earning it a spot on the list of worst airports.