Airports and airlines say they can handle both. U.S. airlines expect to transport 271 million passengers worldwide this summer, up 6.3% from last season, the Airlines for America trade group has projected. Peter Steffen / picture alliance via Getty ImageThe U.S. Department of Transportation tracks “extreme weather” delays caused by conditions like tornadoes, blizzards or hurricanes but not those due to heat. During extreme heat, the airport urges employees to stay hydrated, take frequent breaks and, if they’re working outdoors, to cool off inside every hour. “Passengers are also encouraged to use the airport’s water stations to stay hydrated in the Arizona heat,” he added.

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Persons: It’s, Kevin Burke, Peter Steffen, Harry Reid, ”, Patrick Smith, Amanda Mazzagatti, Robert Thomas, Smith, they’re, John Trierweiler, PHX Organizations: Airlines, America, Airports, Getty, U.S . Department of Transportation, London’s, Airport, Alaska Airlines, Harry, Harry Reid International, “, Embry, Riddle Aeronautical University, Sky Harbor International, Aviation Locations: U.S, America, Hanover, Germany, Europe, Seattle, Portland, California , Texas, Arizona, Louisiana, Las Vegas, Vegas, Daytona Beach , Florida, Phoenix