[The data was provided by OAG, a global air traffic data provider. The data was available when the writer last checked the website on 5th March 2025].
10. Baiyun and Bangkok
Busiest Global Airport: Baiyun
Shandong Airlines Boeing 737 at Guangzhou Baiyun International Airport (CAN) Image:byeangel | Wikimedia Commons
Airport
Guangzhou Baiyun International Airport (CN)
Seats Offered
3,989,237
Ranking in February 2025
9
Most Notable Airlines
China Southern Airlines
FedEx Express
Hainan Airlines
9 Air
Features
The airport’s Main Terminal (B1 gate) houses a mini-hotel
free shuttle bus operates between Terminals 1 and 2
Busiest International Airport: Bangkok
Bangkok International Don Muang Photo:Wikimedia Commons
Airport
Bangkok Suvarnabhumi International Airport (BKK)
Seats Offered
2,788,309
Ranking in February 2025
not in top 10
Most Notable Airlines
Bangkok Airways
Thai AirAsia
Thai VietJet Air
China Southern Airlines
EVA Air
K-Mile Air
Thai Airways International
Features
BKK has a 14.6-mile bike lane around its perimeter for cyclists.
Terminal roof is designed wavelike so that anyone who walks appear to “float” over the concourse beneath.
9. O’Hare and Frankfurt
Busiest Global Airport: O’Hare
American Airlines planes at the Chicago O’Hare International Airport (ORD) Image:Matthew T Rader | Wikimedia Commons
Airport
O’Hare International Airport (ORD)
Seats Offered
3,991,850
Ranking in February 2025
9
Most Notable Airlines
American Airlines
United Express
Features
A walkway connects Terminals 1–3 airside.
There are 35 non-sequential gates on one concourse, with 40 being the largest number.
Busiest International Airport:Frankfurt
united airlines at one of its international route photo:Wikimedia Commons
Airport
Frankfurt International Airport(FRA)
Seats Offered
2,817,969
Ranking in February 2025
not in top 10
Most Notable Airlines
AeroLogic
Discover Airlines
Lufthansa
Lufthansa Cargo
Lufthansa City Airlines
Lufthansa CityLines
Features
provide travelers with first-rate services and a wide range of connections.
Traveling to important German and European cities is made easy by the airport’s integrated long-distance train station.
8. Delhi and Charles
Busiest Global Airport: Delhi
Image of Delhi International Airport Photo: Ganesh Mohan T | Wikimedia Commons
Airport
Indira Gandhi International Airport(DEL)
Seats Offered
4,009,791
Ranking in February 2025
8
Most Notable Airlines
Air India
Alliance Air
FedEx Express
Quikjet Airlines
Features
Its four runways increase capacity and efficiency, making it the first in Asia.
It is renowned for its environmentally friendly efforts, such as the use of solar energy, water recycling, and energy-efficient infrastructure.
Busiest International Airport:Charles
Jet bridge, Paris-Charles de Gaulle Airport, Roissy Image: Matti Blume | wikimedia commons
Airport
Paris Charles de Gaulle Airport(CDG)
Seats Offered
3,168,122
Ranking in February 2025
Not in top 10
Most Notable Airlines
Air France
Air France Cargo
FedEx Express
Features
It is made up of a circular terminal building that holds essential operations including baggage claim conveyors and check-in counters.
7. Denver and Istanbul
Busiest Global Airport: Denver
The main terminal of Denver International Airport Image: Peterquinn925 | Wikimedia Commons
Airport
Denver International Airport(DEN)
Seats Offered
4,120,146
Ranking in February 2025
not in top 10
Most Notable Airlines
Denver Air Connection
Southern Airways Express
United Airlines
Features
Inspired by the Rocky Mountains, the airport’s distinctive Teflon-coated fiberglass roof lets in natural light while enduring harsh weather conditions.
All concourses at DEN are connected by a high-speed subterranean rail, which guarantees effective passenger flow.
Busiest International Airport:Istanbul
Several aircraft of Turkish Airlines parked at Istanbul Airport Photo: A. Savin | Wikimedia Commons
Airport
Istanbul International Airport(IST)
Seats Offered
3,179,140
Ranking in February 2025
7
Most Notable Airlines
Turkish Airlines
Turkish Cargo
Features
IST is a significant transit hub for international visitors, situated at the intersection of Europe, Asia, and the Middle East.
The airport features 189 remote gates and 162 boarding bridges (T1-31 T2-41 Satellite terminal-90).
Busiest International Airport:Hong Kong
Ethiopian Airlines Boeing 767 at Hongkong International Airport Photo: Aero Icarus |Wikimedia Commons
Airport
Hong Kong International Airport (HKG)
Seats Offered
3,235,937
Ranking in February 2025
not in top 10
Most Notable Airlines
Air Hong Kong
Cathay Pacific
DHL Aviation
HK Express
Hong Kong Airlines
Kalitta Air
Polar Air Cargo
UPS Airlinine
Features
Large planes can taxi beneath the airport’s 200-meter-long elevated pedestrian bridge, which also facilitates smooth passenger movement between terminals.
The airport is expanding into “a three-runway system which is one of the largest infrastructure projects in the history of Hong Kong“
5. Heathrow and Amsterdam
Busiest Global Airport: Heathrow
External View of London Heathrow Airport Image: Warren Rohner | Wikimedia Commons
Airport
London Heathrow Airport(LHR)
Seats Offered
4,296,701
Ranking in February 2025
5
Most Notable Airlines
British Airways
Virgin Atlantic
Features
The six runways were set up in three pairs at various angles to form a hexagram.
a multi-faith prayer room
Each terminal has a counselling room
Busiest International Airport:Amsterdam
Morning at Amsterdam Airport Image: Tbatb | Wikimedia Commons
Airport
Amsterdam Airport Schipho(AMS)
Seats Offered
3,297,607
Ranking in February 2025
not in top 10
Most Notable Airlines
KLM
KLM Cargo
KLM Cityhopper
Martinair
Features
Schiphol Airport Library opened gives access to to 1,200 books by Dutch writers on topics related to the nation’s history and culture that have been translated into 29 other languages.
4. Dallas and Seoul Incheon
Busiest Global Airport: Dallas
Dallas-Fort Worth International Airport (aerial photograph)
Airport
Dallas Fort Worth International Airport (DFW)
Seats Offered
4,418,156
Ranking in February 2025
6
Most Notable Airlines
American Airlines
Ameriflight
Southern Airways Express
UPS Airlines
Features
A major cargo facility at DFW Airport is occupied by the U.S. Fish & Wildlife Service, China Airlines, and Lufthansa Cargo.
Features a memorial for Delta Flight 191, air traffic control sounds, and expansive views of the airport.
Busiest International Airport:Seoul Incheon
shot taken from Drone of Incheon International Airport Photo: Simply Aviation|Wikimedia Commons
Airport
Incheon International Airport(ICN)
Seats Offered
3,580,050
Ranking in February 2025
not in top 10
Most Notable Airlines
Air Incheon
Air Premia
Air Seoul
Asiana Airlines
FedEx Express
Jin Air
Korean Air
Polar Air Cargo
T’way Air
Features
Outfitted with automated immigration systems for quicker processing, AI-powered security, and biometric check-ins.
One of the largest duty-free retail complexes in the world
Travelers can take advantage of free screenings of the newest movies at on-site theaters.
Under a huge glass dome, this magnificent nature-themed complex offers shops, entertainment, lush gardens, and the highest indoor waterfall in the world.
Busiest International Airport:Paris
A Concorde on Display at Charles de Gaulle Airport. Photo: Pierre André | Wikimedia Commons
Airport
Paris Charles de Gaulle Airport(CDG)
Seats Offered
3,594,022
Ranking in February 2025
not in top 10
Most Notable Airlines
Air France
Air France Cargo
FedEx Express
Features
Includes futuristic Terminal 1 with its distinctive circular design and underground passageways, among other impressive examples of modern architecture.
Train travel to locations around France and Europe is made easy by the airport’s direct TGV station.
2.Dubai and Heathrow
Busiest Global Airport: Dubai
Emirates 9840 at Dubai international airport Photo: N509FZ|Wikimedia Commons
Airport
Dubai International Airport(DXB)
Seats Offered
5,159,409
Ranking in February 2025
1
Most Notable Airlines
Flydubai
Emirates
FedEx Express
Features
offers peaceful green areas for passengers to unwind in between flights.
Travelers may enjoy a range of top-notch dining options, lounges, and entertainment options at the airport, which is open 24/7.
Busiest International Airport: Heathrow
Aerial View of London Heathrow Airport photo: Konstantin Von Wedelstaedt|Wikimedia Commons
Airport
London Heathrow Airport(LHR)
Seats Offered
4,008,644
Ranking in February 2025
5
Most Notable Airlines
Virgin Atlantic
British Airways
Features
Heathrow offers a first-rate travel experience with its Michelin-starred eateries and private lounges.
1. Atlanta and Dubai
Busiest Global Airport: Atlanta
International Terminal of ATL
Airport
Atlanta Hartsfield-jackson International Airport(ATL)
Seats Offered
5,369,683
Ranking in February 2025
2
Most Notable Airlines
Delta Airlines
Features
With its five runways and two terminals, ATL serves millions of passengers annually with effective connections.
Busiest International Airport:Dubai
Emirates Airline providing non-stop flight services at Dubai International Airport in 2024 Photo: Andy Mabbett |Wikimedia Commons
Airport
Dubai International Airport(DXB)
Seats Offered
5,159,409
Ranking in February 2025
1
Most Notable Airlines
Flydubai
Emirates
FedEx Express
Features
offers peaceful green areas for passengers to unwind in between flights.
Travelers may enjoy a range of top-notch dining options, lounges, and entertainment options at the airport, which is open 24/7.