The rising frequency of extreme heat days poses significant challenges for air travel, particularly in regions with desert climates, high altitudes, or short runways. Passengers may face delays, cancellations, or be asked to give up their seats to reduce aircraft weight. Airlines may also need to carry less fuel, requiring additional refueling stops. These disruptions are expected to become more common as climate change continues to drive higher temperatures. Airports in urban areas are particularly vulnerable due to the urban heat island effect, which exacerbates heat levels.