These Were the World’s Busiest Airports in 2025
by Bruce Parkinson
Airports around the world were busier than ever in 2025.
Airports Council International (ACI) World has revealed the 2025 rankings of the world’s busiest airports, highlighting the industry’s leading hubs across total passengers, international passengers, air cargo, and aircraft movements.
ACI World tracks data from more than 2,200 airports in more than 160 countries across the globe.
Hartsfield-Jackson Atlanta International Airport remains the world’s busiest airport for passenger traffic with 106.3 million passengers, followed by Dubai International Airport (95.2 million passengers) and Tokyo Haneda Airport, which moved up to 3rd with 91.7 million passengers. For comparison, Toronto Pearson ranked 20th in 2025 with 46.8 million passengers.
In terms of aircraft movements, Chicago O’Hare International Airport ranked first.
ACI World Director General Justin Erbacci said: “We congratulate the world’s busiest airports for managing growing air travel demand amid increasing operational complexity. These hubs keep people and goods moving, supporting global trade, tourism, and economic growth in their communities and regions. To help keep pace with rising demand, governments must prioritize sustained investment in airports and the broader aviation ecosystem.”
Highlights of 2025 air travel:
- Global total passengers are estimated to have reached 9.8 billion, representing an increase of 3.6% from 2024 and a gain of 7.3% from 2019 results.
- The top 10 busiest airports for total passenger traffic represent 9% of global passenger traffic.
- Shanghai Pudong recorded the biggest jump in the top 10, rising from 10th to 5th.This growth was supported by international traffic recovery, visa policy easing, and expanded connectivity.
- Four airports in the top 10 are in the United States, reflecting continued market strength. They all have significant domestic passenger shares (80–95% domestic traffic).
Global aviation context in 2025
Resilient but fragile global economy: Global GDP grew ~3.0–3.2% in 2025, above expectations but below historical norms, with ongoing risks from trade tensions, protectionism, and policy uncertainty affecting air travel demand.
Lower fuel prices and easing inflation supported demand: Jet fuel prices fell (~-13% YoY) and inflation eased, boosting purchasing power and sustaining strong passenger demand despite volatility.
Global recovery led by international traffic: Global airport traffic rose 3.6% in 2025, driven by international demand and Asia-Pacific recovery, while North American and European hubs neared saturation.
Capacity becoming a key constraint: Growth was increasingly limited by infrastructure and slot constraints in some regions, aircraft delivery backlogs, and air navigation limitations.
Geopolitics reshaping traffic flows: Airspace closures and conflicts increased flight times and costs, prompting rerouting and shifting traffic toward alternative hubs. This phenomenon has been even more pronounced in the first months of 2026, largely due to the war in Iran.
China’s reopening boosting global hubs: The return of Chinese travel accelerated growth across Asia-Pacific and major hubs, strengthening global connectivity.
Crossing Borders
- International passenger traffic reached 4.0 billion in 2025, representing a gain of 5.9% vs 2024 and 8.3% vs 2019.
- The top 10 busiest airports for international passenger traffic represent 17% of total international traffic.
- Dubai remained 1st, while London Heathrow and Incheon held on to the 2nd and 3rd positions respectively.
