Airport passengers on Apr 28, 2026

The 'Big 4' U.S. airlines project varied domestic ASM growth for Q2 2026. American Airlines anticipates a domestic Available Seat Miles (ASM) increase of 5% to 7% year-over-year for the second quarter of 2026, according to its Q1 2026 earnings guidance ^[1]. United Airlines expects its domestic ASMs to grow between 7.0% and 9.0% compared to Q2 2025 ^[2]. Southwest Airlines, primarily a domestic operator, projects its Q2 2026 ASMs to be up 6% to 7% year-over-year ^[3].

However, a full aggregate domestic ASM projection is currently unavailable due to Delta Air Lines' reporting. Delta Air Lines projected its total capacity (ASMs) to increase by 10% to 12% year-over-year for the second quarter of 2026 ^[4]. The available earnings reports and summaries for Delta Air Lines did not provide a separate growth projection specifically for domestic ASMs, which prevents its inclusion in a comprehensive aggregate domestic assessment ^[4].

The historical median passenger volume for the last Tuesday of April between 2019 and 2024 was 2,217,693.5 passengers. The first quartile (Q1) for this period was 1,387,907 passengers, and the third quartile (Q3) was 2,423,439 passengers. This indicates an interquartile range (IQR) of 1,035,532 passengers, representing the typical spread of passenger traffic on these specific days ^[1].

Tuesday volumes exceed April daily averages, post-Easter. When compared to the overall daily average for April in the same years (excluding 2020 due to its anomalous nature), the last Tuesday of April generally recorded higher passenger volumes. The differences ranged from approximately 52,000 to 155,000 additional passengers on these Tuesdays. This trend persists despite the timing, as the last Tuesday of April consistently fell after the main Easter holiday travel periods, suggesting these volumes reflect typical late-April weekday travel rather than holiday surges ^[1].

Passenger volumes varied significantly; 2025 data remains unavailable. Passenger volumes on the last Tuesday of April varied significantly over the period, ranging from a low of 104,809 on April 28, 2020 ^[3] to a high of 2,525,830 on April 30, 2024 ^[2]. As of current reporting, data for April 2025 passenger throughput is not yet available from the provided sources ^[4].

U.S. business travel spending projects a 91% recovery by H1 2026. According to the Global Business Travel Association's (GBTA) Business Travel Index (BTI) Outlook, U.S. business travel spending is forecasted to recover to approximately 91% of its 2019 levels by the first half of 2026 ^[2]. This projection indicates the U.S. market will lag slightly behind the global average, as worldwide business travel spending is anticipated to reach about 93-94% of 2019 levels during the same period ^[2].

Global business travel's full recovery now anticipated for early 2027. The complete worldwide recovery of business travel spending to its pre-pandemic 2019 levels is now expected in early 2027, representing a delay of approximately six months from prior predictions ^[2]. This decelerated recovery pace is attributed to a combination of ongoing challenges, including prolonged economic uncertainties, persistent inflationary pressures, and stricter corporate travel budgets, all contributing to cautious spending decisions by businesses ^[2]. The GBTA BTI Outlook remains a vital indicator for tracking trends and forecasts within the global business travel industry ^[3].

Specific data on April 2026 international departures is unavailable. There is no direct, aggregated data detailing the net change in scheduled international flight departures from U.S. airports for April 2026 compared to April 2025 in the provided research materials ^[1]. The exact aggregated net change with specific figures for this comparative period is not detailed.

US airlines are strategically reshaping their international networks. Although specific comparative data for April 2026 versus April 2025 is not available, aviation analytics indicate that U.S. airlines are strategically reshaping their international networks for 2026 ^[2]. This involves dynamic adjustments in capacity and frequency, driven by factors such as demand on specific routes and network optimization.

Airlines show both expansion and capacity shifts. For instance, United Airlines plans a significant network expansion for 2026, including 101,000 new flights and a 10 million seat capacity increase across its entire network, which incorporates international services ^[3]. Conversely, analyses using data from providers suggest potential declines or shifts in capacity for certain international segments, such as U.S.-Europe summer trips ^[4].

The FAA faces a critical air traffic controller shortage for Spring 2026. This deepening shortage has reached a critical threshold, effectively a breaking point ^[1]. To mitigate this operational constraint, primarily due to insufficient staffing, the Federal Aviation Administration (FAA) plans a significant hiring initiative, proposing to onboard 2,300 air traffic controllers as part of its 2026 budget request, following an early surge in applications ^[2]. These staffing limitations are expected to cap passenger throughput below the levels suggested by airline demand forecasts for Spring 2026.

Controller staffing shortfalls will severely impact Spring 2026 air travel. The current crisis is projected to push Spring 2026 flight delays to a five-year high and has already caused record delays at 12 major U.S. hubs ^[3]. To manage these capacity limitations, the FAA has imposed flight caps at key airports, such as O’Hare, directly preventing airlines from executing planned expansions ^[4]. The severity of the situation is further highlighted by ongoing congressional debates concerning emergency staffing fixes ^[5].

Research did not identify aircraft delivery delays for late 2025. The conducted research did not provide information regarding potential aircraft delivery delays from manufacturers like Boeing and Airbus for late 2025 or their potential impact on passenger throughput for Spring 2026.