Orlando and Phoenix Experience 7% Growth in US Air Travel with Over Six Hundred Airports Offering Scheduled Services in March 2025: You Need to Know

Air travel across the United States is flourishing in March 2025, with 655 airports providing scheduled services throughout the nation. The busiest airports continue to dominate, accounting for 35% of the nation’s total capacity. Orlando and Phoenix stand out with a 7% year-over-year growth, indicating strong demand in these regions. Here’s a detailed look at the busiest airports in the U.S. this month.

1. Atlanta Hartsfield-Jackson International Airport (ATL)
Atlanta Hartsfield-Jackson International Airport remains the busiest in the U.S., with a remarkable 5,369,683 scheduled seats this month. Serving as a major hub for Delta Air Lines, ATL’s strategic location facilitates both domestic and international connectivity. With over 1,000 daily flights, ATL is a key connection point between the East Coast, Midwest, and Southern U.S. The airport continues to invest in infrastructure improvements to enhance passenger experience and support future growth.

2. Dallas/Fort Worth International Airport (DFW)
Dallas/Fort Worth International Airport holds the second spot, offering 4,418,156 seats in March 2025. As the largest hub for American Airlines, DFW serves as a critical link for both domestic and international travel. Its central location makes it an essential transfer hub, especially for domestic flights, while expanding routes to Europe, Asia, and Latin America further boost its international growth. Ongoing terminal renovations and gate expansions ensure DFW can meet the rising passenger demand.

3. Denver International Airport (DEN)
Denver International Airport ranks third with 4,120,146 scheduled seats this month. As a major hub for United Airlines and Southwest Airlines, DEN continues to see high demand for both domestic and international flights. The airport’s strategic position serves as a vital connection point for East and West Coast flights, and its altitude allows for efficient long-haul operations. Denver’s popularity as a destination for leisure and business travel contributes to its sustained success.

4. Chicago O’Hare International Airport (ORD)
Chicago O’Hare International Airport remains one of the busiest airports in the U.S., offering 3,991,850 seats this month. As a primary hub for United Airlines and American Airlines, ORD is essential for both domestic and international air traffic. Its expansive network of flights connects passengers to destinations across the globe, particularly for transatlantic and transpacific routes. O’Hare’s efficiency and strategic importance ensure it remains a leading airport despite occasional weather disruptions.

5. Los Angeles International Airport (LAX)
Los Angeles International Airport, the busiest airport on the U.S. West Coast, offers 3,754,459 seats in March 2025. A hub for American Airlines, Delta Air Lines, and United Airlines, LAX plays a crucial role in connecting the U.S. to destinations in Asia, Europe, and Latin America. Nonstop flights to major cities across the globe make LAX a preferred airport for international travelers. The ongoing modernization efforts, including the new automated people mover system, are expected to ease congestion and enhance passenger experience.

6. Orlando International Airport (MCO)
Orlando International Airport has experienced a 7% year-over-year increase, reaching 3,261,996 seats in March 2025. Known as a top leisure destination, MCO benefits from strong demand, particularly from families traveling to Disney World and Universal Studios. The airport’s growing international network, particularly to Latin America and Europe, further solidifies its position as a key U.S. travel hub.

7. Miami International Airport (MIA)
Miami International Airport ranks seventh, offering 3,094,535 seats this month. As a major gateway between the U.S. and Latin America, MIA sees significant demand for international travel. With expanding networks to Europe and Asia, along with robust cargo operations, Miami continues to thrive as a crucial hub for both passengers and freight.

8. Phoenix Sky Harbor International Airport (PHX)
Phoenix Sky Harbor International Airport has seen a 7% capacity increase this month, with 3,112,982 seats. As a hub for American Airlines and Southwest Airlines, PHX serves a large volume of domestic traffic, particularly to the West Coast. The airport’s recent expansions have positioned it well for continued growth and greater efficiency in meeting passenger demands.

9. Las Vegas Harry Reid International Airport (LAS)
Las Vegas Harry Reid International Airport is set to handle 3,058,792 passengers in March 2025. The airport benefits from both leisure and business travel, with conventions and tourism driving significant passenger traffic. LAS has also seen an increase in international connectivity, particularly to Mexico and Canada, making it an increasingly popular destination for global travelers.

10. John F. Kennedy International Airport (JFK)
John F. Kennedy International Airport rounds out the top 10 with 3,080,095 scheduled seats. As one of the primary hubs for international travel, JFK is crucial for flights to Europe, Asia, and other destinations worldwide. With a wide range of major carriers, including Delta, American, and JetBlue, operating from JFK, the airport remains one of the most important in the U.S. for both domestic and international connections.

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