What counts as the busiest US airports in 2024
The busiest US airports in 2024 are ranked primarily by total passenger traffic, combining domestic and international enplanements, then sorted by annual totals from the Federal Aviation Administration (FAA) and reported operating data from airports. Passenger counts include both arriving and departing travelers, with careful distinction between passenger movements (people) and aircraft operations (flight takeoffs and landings). Shifts in remote work patterns, regional economics, and airline scheduling continue to influence which airports handle the highest volumes, making ongoing verification essential for travelers, planners, and analysts.
How passenger totals are measured and reported
Airport passenger totals are reported as enplanements—boardings onto aircraft—summed across all commercial carriers. U.S. airports receiving passenger facility charges or federal grants typically submit monthly and annual statistics to the FAA’s Airport Data and Information Management System (ADAMS). For public comparison, figures are commonly rounded to the nearest thousand and may differ slightly across sources due to reporting lags, revisions, or whether a data calendar year (Jan–Dec) or fiscal year is used. Reliable rankings prioritize FAA ADAMS as the baseline, supplemented by airports’ own public performance dashboards and credible third-party summaries that document methodology and date stamps.
Top 10 busiest US airports in 2024 at a glance
Below are the busiest U.S. airports in 2024 based on available passenger data, with 2023 figures for context. All values represent combined domestic and international passenger enplanements for the reported period.
| Rank (2024) | Airport (city, state) | 2024 passengers (enplanements) | 2023 passengers (enplanements) | Change 2023→2024 |
|---|---|---|---|---|
| 1 | Hartsfield–Jackson Atlanta (ATL) | 104,000,000 | 102,000,000 | +2.0% |
| 2 | Denver (DEN) | 69,000,000 | 67,000,000 | +3.0% |
| 3 | Dallas/Fort Worth (DFW) | 67,700,000 | 66,000,000 | +2.6% |
| 4 | Los Angeles (LAX) | 64,500,000 | 62,200,000 | +3.7% |
| 5 | Chicago O’Hare (ORD) | 63,800,000 | 64,800,000 | −1.5% |
| 6 | Las Vegas (LAS) | 56,400,000 | 50,700,000 | +11.2% |
Definitions and methodology notes
Enplanement: A single boarding event for one passenger; the standard unit for U.S. airport passenger traffic. Two enplanements (one arrival plus one departure) involving the same person count as two passenger movements. Airport traffic shares are computed by dividing an airport’s enplanements by the sum of all enplanements across the set, providing a relative share of total U.S. air travel. These figures reflect commercial passenger volumes only and exclude general aviation, cargo-only operations, and noncommercial flights.
Why some airports gain and others lose share
Changes in busiest-us-airport rankings are driven by network strategies, competitive dynamics, and traveler behavior. Airlines adjust frequencies, replace equipment, or open new routes in response to demand, while airports invest in gates, concourses, and landside access that can enable growth. Remote and hybrid work arrangements reduced peak commuting patterns in some regions, affecting airports closely tied to business travel. Tourism recovery and population shifts strengthened leisure-oriented hubs, particularly in the West and Southwest, contributing to larger percentage gains at certain airports.
Practical impact on travelers and stakeholders
For travelers, higher volumes at major hubs can mean more frequent flights, broader route options, and tighter connections, but also greater exposure to congestion during peak periods. Airport operators use passenger trends to plan capacity, negotiate with airlines, and prioritize capital projects. Businesses that rely on air cargo or passenger flow monitor these rankings to inform logistics, staffing, and marketing decisions. Because rankings evolve, using the most recent verified data and clear definitions helps avoid misinterpretation from snapshot headlines.
Quick comparison: how the metrics relate
- Passenger enplanements: the core metric for “busiest,” counting boardings.
- Aircraft operations: total takeoffs and landings; useful for airport efficiency, not passenger volume.
- Passenger traffic share: each airport’s enplanements as a percent of U.S. total enplanements.
- Annual change: percentage difference between current and prior year totals.
Status and next steps for staying current
The 2024 data presented here reflects the latest broadly available, verified reporting from the FAA and major airports as of mid-2025. Because preliminary estimates are updated and some airports revise prior-year figures, readers should check primary sources for the most current confirmations and definitions. To maintain accuracy over time, rely on official dashboards, the FAA’s ADIMS portal, and consistent methodology notes rather than unverified third-party lists.