DR Laura, I had no idea the heat could cause problems with airplanes taking off. I am used to problems due to ice.
Those traveling to or from Phoenix during the hottest afternoon hours this week may want to consider rescheduling their flights.
American Airlines is offering free assistance.
Airline officials in a news release Saturday recommended that customers reschedule flights that will arrive or depart Sky Harbor International Airport between 3 and 6 p.m. Monday, Tuesday or Wednesday.
Extreme heat during those hours may impact planes' ability to take off and land, particularly for smaller aircraft, according to American Airlines.
Monday is expected to reach 117 degrees during those afternoon hours, according to National Weather Service spokesman James Sawtelle.
Tuesday will be the hottest day of the week, with an expected high of 120, Sawtelle said. And Wednesday won't be much cooler at an expected high of 119 degrees.