Jazmin Li
Airports are ranked worldwide according to various factors, including passenger traffic, total capacity, and customer satisfaction. Hartsfield-Jackson Atlanta International Airport is consistently ranked as the world's busiest airport by passenger traffic, while Dubai International Airport ranks second, with a significant increase in capacity between 2024 and 2025. Singapore's Changi Airport has been voted the best airport in the world by travellers, taking into account factors such as public transport options, waiting times, and food choices. London Heathrow Airport is Europe's highest-ranking airport and the second busiest international airport worldwide as of May 2025. These rankings are dynamic and can shift due to various factors, such as the resumption of international flights or changes in visa policies.
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What You'll Learn
Busiest by passenger traffic
Hartsfield–Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, is the world's busiest airport by passenger traffic. It has held this position every year since 1998, except in 2020 when travel restrictions due to the COVID-19 pandemic caused a dip in passenger traffic. Atlanta quickly regained its top position in 2021 and has maintained it since. In 2024, the airport handled over 108 million passengers, according to Forbes.
Dubai International Airport is ranked second globally, with 92 million passengers in 2024. Dubai's strategic location between Europe, the Middle East, and Asia has contributed to its high passenger traffic. The airport serves as Emirates' global gateway and has seen a significant increase in its rankings over the years.
London Heathrow Airport is another notable hub, ranking as Europe's busiest and a global travel hub. In 2024, it welcomed over 83 million passengers. Additionally, London boasts the world's busiest city airport system by passenger count.
Other airports among the top busiest by passenger traffic include Tokyo International Airport (Haneda Airport), Chicago O'Hare International Airport, and Denver International Airport. These airports have consistently handled a high volume of passengers and continue to be major aviation hubs worldwide.
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Busiest international airports
The Hartsfield-Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, is the world's busiest airport. It has held this position every year since 1998, except in 2020 when travel restrictions due to the COVID-19 pandemic caused a dip in passenger traffic. Atlanta quickly regained its top position in 2021. In 2024, the airport served 108 million passengers, with 150 non-stop destinations across six continents.
Dubai International Airport ranks second, with 92 million passengers in 2024. Dubai's strategic location between Europe, the Middle East, and Asia has contributed to its high passenger traffic. Additionally, 106 international airlines fly into Dubai, reflecting its growing importance as a hub for business and investment.
New Delhi's airport has also seen a significant rise in rankings, jumping from 28th to 7th place between 2019 and 2024. Shanghai's Pudong International Airport experienced the largest increase in the rankings, climbing from 21st in 2023 to 10th in 2024, attributed to the resumption of international flights and visa policy expansions.
Overall, the top 10 busiest airports transported approximately 855 million passengers in 2024, accounting for about 9% of global air traffic.
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Best airport for customer satisfaction
While there is no specific ranking for airports worldwide based on customer satisfaction, there are several studies that indicate the level of customer satisfaction for airports. According to J.D. Power's "2024 North American Airport Satisfaction Study", 60% of North American air passengers enjoyed their airport experience to some extent. The study used metrics like ease of travel through the airport, level of trust with the airport, terminal facilities, airport staff competency, food, beverage, and retail availability, and overall airport experience.
Minneapolis–Saint Paul International Airport topped the list for mega airports, scoring 671 out of 1,000. Detroit Metropolitan Wayne County Airport and Phoenix Sky Harbor International Airport, which saw 48 million travelers last year, followed closely with only a 28-point difference. John F. Kennedy International Airport, located in New York City's borough of Queens, ranked fourth for overall customer satisfaction.
For large airports serving 10 to 32.9 million passengers annually, John Wayne Airport in California's Orange County took first place. Indianapolis International Airport scored 687, making it the medium-sized airport with the highest customer satisfaction.
While the aforementioned airports excelled in customer satisfaction, the Hartsfield-Jackson Atlanta International Airport in Georgia, United States, has consistently ranked as the world's busiest airport since 1998, except for 2020 due to the COVID-19 pandemic. Dubai International Airport ranks second globally with 92 million passengers, serving as a hub between Europe, the Middle East, and Asia.
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Fastest-growing airports
The Hartsfield-Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, has consistently been ranked the world's busiest airport since 1998, except in 2020 due to the COVID-19 pandemic. As of May 2025, it remains the busiest airport in the world with 5.5 million seats, unchanged from May 2024. Dubai International Airport (DXB) is ranked second with 5.2 million seats, a 3% increase from last year. Dubai's strategic location between Europe, the Middle East, and Asia has contributed to its high ranking.
While the COVID-19 pandemic significantly impacted the aviation industry, several airports have demonstrated resilience and remarkable growth since 2019. Cancun International Airport (CUN) in Mexico has experienced the most significant growth, with a 37% increase in seat capacity since 2019. This growth is attributed to the increasing demand for beach destinations and the city's popularity as a gateway to other Mexican tourist destinations. Miami International Airport (MIA) and Cairo International Airport (CAI) are tied for second place, with a 23% increase in seat capacity since 2019. Miami's growth is driven primarily by domestic passengers, while Cairo benefits from its popular tourist destinations, such as the pyramids of Giza and Luxor.
Istanbul Airport (IST) is another fast-growing airport, with a 22% increase in passenger traffic since Q1 of 2019. Istanbul's unique geography between Europe, the Middle East, and Asia makes it a convenient gateway destination. Additionally, it serves as the main hub for Turkish Airlines, offering flights to over 200 destinations.
Other notable mentions include Chicago O'Hare International Airport (ORD), which had the most considerable capacity increase between May 2024 and May 2025 among the top 10 busiest global airports. Dubai International Airport (DXB) has also shown significant growth, moving up 16 places in the rankings between May 2019 and May 2025.
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Busiest by scheduled capacity
As of May 2025, Atlanta Hartsfield-Jackson International Airport (ATL) is ranked as the busiest global airport by scheduled capacity, with 5.5 million seats and no change in capacity compared to May 2024. Atlanta Hartsfield-Jackson International Airport has been the busiest airport in the world every year since 1998, except in 2020 due to COVID-19-related travel restrictions. Its dominance is solidified by its strategic location as a gateway to domestic and international destinations, serving as a connecting hub for travellers.
Dubai International Airport (DXB) is ranked second, with 5.2 million seats and a 3% increase in capacity compared to the previous year. Dubai's airport owes its high ranking to its strategic location between Europe, the Middle East, and Asia, with 106 international airlines flying into this hub.
London Heathrow Airport (LHR) is in third place with 4.3 million seats, followed by Amsterdam, which has moved up a place to become the third busiest international airport with 3.7 million seats. Singapore Changi Airport (SIN) has moved down a place to become the fourth busiest international airport, with a 2% lower capacity and 3.6 million seats.
Hong Kong has witnessed the most significant capacity increase in the top 10, with a 13% increase in capacity, equating to 369,442 additional seats compared to the previous year. Chicago O'Hare International Airport (ORD) has also experienced a notable increase in capacity, with a 7% rise in May 2025 compared to May 2024, contributing to its global ranking improvement.
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Frequently asked questions
Hartsfield-Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, is the busiest airport in the world. It has held this position every year since 1998, except in 2020 due to travel restrictions during the COVID-19 pandemic.
The world's busiest airports are ranked by total passenger traffic, including passengers enplaned, deplaned, and in direct transit.
Singapore Changi Airport has been named the best airport in the world by aviation-ranking organization Skytrax. It features a glass-floored canopy bridge, the world's tallest indoor waterfall, and giant trampolines and slides.
