Anecdotal evidence of that airport boom is everywhere: In the U.S., it’s in Salt Lake City (SLC), which is three years into a $3.6 billion reconstruction project aiming to open the first phase of its entirely new, two-terminal site starting in 2021. A decade after the devastation of Hurricane Katrina, New Orleans has a gleaming new $1 billion terminal complex that will replace the creaking current facilities at Louis Armstrong (MSY) just in time for Mardi Gras next year.