ADS-B flight data captured at Adolfo Suárez Madrid–Barajas Airport (MAD/LEMD) on April 27, 2026, the 95th anniversary of the airport's opening, recorded 1,033 total movements across 454 unique aircraft, with 553 departures and 480 arrivals logged throughout the full 24-hour period in CEST. Traffic ran continuously from 00:00 to 23:59, averaging 43 flights per hour. The busiest hour was 16:00, which produced 80 movements (59 departures, 21 arrivals), the heaviest departure imbalance of any hour in the day. A quieter stretch ran from 02:00 to 05:00, with hourly totals dropping as low as 1 before recovering sharply through the morning. An additional 34 ground operations were recorded, and 182 flights were filtered for incomplete trajectories. Barcelona (BCN) led all routes with 35 combined movements (19 arrivals, 16 departures), followed by Palma de Mallorca (PMI) at 31 and Rome Fiumicino (FCO) at 26. Lisbon (LIS), Paris-Orly (ORY), London Heathrow (LHR), and Ibiza (IBZ) each logged between 23 and 25 movements. Approach and departure directions both concentrated heavily toward ENE and NNE, each accounting for over 80 movements in both flow directions. Aircraft registrations spanned 32 countries, with 240 of 454 unique aircraft carrying country code XX, followed by Italy (25), the United States (24), and Croatia (23). Altitude data covered 746,268 ADS-B position points. The most frequent cruise band was 37,000–38,000 ft (37,780 points), with a secondary concentration around 36,000–37,000 ft (35,415 points). The recorded maximum altitude was 45,825 ft, reached by Czech-registered aircraft OK-ELD on an arrival from Épinal Mirecourt Airport. The average groundspeed across all flights was 304 knots, with a maximum of 558 knots. Total distance across all legs reached 654,621 nautical miles, at an average leg distance of 633.7 nm and average duration of 105.9 minutes.