The Southeast Asia hub has installed full-size replicas of locations featured in the Potter books and movies, offering devotees of J.K. Rowling's creation another reason to fly, CNN reported.
Travelers not too overcome by jet lag or Potter fatigue can head to Terminal 3, which houses a Hogsmeade Village complete with Honeydukes sweet shop, Madam Puddifoot's tea shop, Zonko's joke shop, Owl Post and even the Hogwarts Express train.
Elsewhere in Terminal 3 visitors will find Diagon Alley, with shops such as Quality Quidditch Supplies and Weasleys' Wizard Wheezes.
Terminal 2, meanwhile, hosts the notorious Whomping Willow tree, while Newt Scamander's Menagerie, part of the new movie ‘Fantastic Beasts: The Crimes of Grindelwald,’ awaits in Terminal 1.
There are Quidditch challenges, fancy dress Hogwarts uniforms and other themed activities designed to make a long layover pass faster than you can say ‘wingardium leviosa,’ and presumably encourage you to spend some money too.
The ‘Wizarding World Holiday at Changi's’ event opened on November 16 and will run until mid-February 2019.
Plus there are even free tours of the city available for passengers on longer layovers.
Singapore Changi, which handled 62.2 million passengers in 2017, has been voted the world's best airport for six years in a row by the prestigious Skytrax awards, with the category dominated by Asian airports.