A heatwave across the western United States is breaking records and that is causing concern about the supply of electricity with air conditioners being used heavily.
It has also affected air travel with some airlines forced to ground their planes and cancel flights because it is too hot to fly.
In a separate release, the airport said it works with airplane manufacturers and air traffic controllers to delay flights in extreme heat.
Larger jets may be affected by the heat wave, but only if temperatures hit record highs. The airport said most jetliners are certified to operate up to 122 degrees, the hottest day ever recorded in Phoenix.
Phoenix could set a new all-time high this week. The National Weather Service called for a high of 117 degrees Monday, 120 degrees on Tuesday and 119 degrees on Wednesday.