Does extreme heat affect ground operations or delay flights at Austin airport?

Austin-Bergstrom International Airport says it is up to individual airlines, in coordination with the FAA, to decide whether to operate during extreme heat. The airport system reports it is not aware of any flight delays or cancellations at Austin-Bergstrom specifically caused by extreme temperatures. The airport itself does not manage those decisions. Instead, each flight crew uses performance calculations to determine aircraft safety margins and takeoff/landing suitability. The FAA also says it does not cancel flights or instruct airlines not to fly at certain temperatures. Airlines and crews must follow aircraft manufacturer requirements in the operations manual, including maximum temperatures that vary by aircraft type, weight, and the airport’s altitude. Even when temperatures exceed limits, the FAA says there is no data showing it’s safe.