The 45-year-old model and TV personality showcased her chic style in a yellow turtleneck sweater, bright blue jacket, blue distressed denim jeans, and white chunky boots.
Meanwhile, the 29-year-old Tokyo Hotel musician kept it comfortable in a tan shearling jacket, white trousers and a black beanie.
Ahead of their flight, Klum took to her Instagram to share a Boomerang video of herself en-route to the airport while snacking on a pizza.
“Bye Bye NYC … next stop Germany 🇩🇪 #ichbingntm2019,” she captioned.
On Wednesday night (October 31), Klum and Kaulitz stole the Halloween show at her annual party where they dressed up as the married Shrek and Princess Fiona.