2024 Aviation Insights: Top Countries, Busiest Flight Routes, and Popular Planes

Published Time: 08-10-2025, 11:00 (U.S. Eastern Time)

The International Air Transport Association (IATA) has released its 2024 World Air Transport Statistics report, offering an in-depth look at global air travel trends. From the countries with the highest passenger volumes to the busiest flight routes and the most common aircraft in operation, this comprehensive report reveals the current state of the aviation industry worldwide.

The World’s Largest Aviation Markets in 2024

According to IATA, the United States remains the largest aviation market globally, with an estimated 876 million passengers expected to fly in 2024. The majority of this traffic consists of domestic flights, reflecting the vast size of the country and its well-established air travel infrastructure. This figure is more than four times higher than India’s passenger numbers, despite India being the world’s most populous country and ranking as the fifth largest aviation market.

China ranks second, with 741 million passengers projected for 2024. Remarkably, China’s aviation sector is growing at a rapid pace, boasting an 18.7% year-on-year increase in passenger traffic. In contrast, the U.S. market is expanding more modestly, with a 5.2% growth rate this year.

The United Kingdom holds third place among the top aviation markets. Though geographically smaller, the UK anticipates 261 million passengers in 2024, connecting domestic and international destinations across Europe and beyond. Spain ranks fourth, serving approximately 241 million passengers, many of whom are tourists visiting its popular vacation spots.

Busiest Flight Routes Around the Globe

The IATA report highlights a clear concentration of high-traffic routes in the Asia-Pacific region, where nine out of the world’s ten busiest flights operate. The most popular route is a domestic South Korean flight between Jeju Island (CJU) and Seoul (GMP), carrying over 13 million passengers in 2024. This short, approximately 75-minute flight links the country’s capital to a favored resort destination.

In North America, the busiest air corridor is the transcontinental route between New York City’s JFK Airport and Los Angeles International Airport (LAX), with 2.2 million passengers flying this route in 2024.

Europe’s most frequented flight connects Barcelona (BCN) and Palma de Mallorca (PMI) in Spain, two major tourist hubs. This one-hour flight carried around 2 million passengers last year. For travelers seeking less crowded alternatives, various regions in Spain offer quieter vacation options.

In Latin America, the top route is a one-hour domestic flight within Colombia, connecting Bogotá (BOG) and Medellín (MDE) with 3.8 million passengers. South Africa’s busiest route is the two-hour domestic flight between Cape Town (CPT) and Johannesburg (JNB), serving 3.3 million travelers.

Popular Aircraft Models in 2024

Despite past challenges, the Boeing 737 series remains the most widely used aircraft worldwide, operating approximately 10 million flights in 2024. This includes all variants of the 737 family. The Airbus A320 and A321 models follow, with 7.9 million and 3.4 million flights respectively, reflecting the strong competition between Boeing and Airbus in the narrowbody aircraft market.

Destination Highlights and Travel Inspiration

Beyond the numbers, the aviation report also inspires travel ideas with intriguing destinations gaining attention in 2024:

• Halfeti, Turkey: Known as the “half-submerged town,” Halfeti was partially flooded following the construction of the Birecik Dam in 2000. Residents continue to live in this unique town, surrounded by mineral-rich lands that foster the growth of rare black roses.
• Angola: This vast southern African country, twice the size of Texas, is emerging as a new travel frontier. With its spectacular natural landscapes and improving infrastructure, Angola offers a largely undiscovered adventure for intrepid travelers.
• Chongqing, China: A mountainous city in southwestern China, Chongqing has become popular with younger travelers due to its extraordinary layered architecture. Nicknamed the “8D city,” it features sights like trains passing through residential buildings, making it a hotspot for photography and social media sharing.

Unearthing Hidden Wonders: Rome’s Secret Tunnel City

An exciting archaeological rediscovery is unfolding beneath Rome, where a network of ancient caves and tunnels lies approximately 75 feet underground. Hidden from public view for over a century, these subterranean passageways are now being opened to visitors, offering a glimpse into the city’s rich history far beneath the bustling streets above.

Additional Travel News Updates

• France faces scrutiny over its culinary culture, with whistleblowers calling for reform in professional kitchens.
• Italy has approved a groundbreaking project for a new Sicily bridge, poised to become the world’s longest single-span bridge.
• More than 25 million Americans struggle with a fear of flying; expert advice is available for managing this phobia.
• It’s not too late to plan a summer getaway—discover some of America’s best underrated islands for a peaceful retreat.

Conclusion

The IATA’s 2024 World Air Transport Statistics report paints a detailed picture of the evolving aviation landscape. While the U.S. and China lead in passenger numbers, rapid growth in Asia-Pacific flight routes highlights shifting travel patterns. Popular aircraft like the Boeing 737 continue to dominate the skies, while emerging travel destinations promise exciting new experiences for travelers worldwide.

As global air travel continues to recover and grow, these insights provide valuable information for passengers, industry professionals, and policymakers alike.

Source: CNN – Which country flies the most? Where are people going? And in which planes? 2024 aviation stats revealed