Keeping up with Kendall Jenner and Jacob Elordi.

The couple were spotted flying under the radar at Australia’s Brisbane Airport over the weekend, in photos obtained by Page Six.

The “Kardashians” star, 30, and the actor, 29, covered their faces during Sunday’s outing with scarves, sunglasses and masks.

Elordi wore a hoodie, with Jenner sporting a baseball cap.

The duo similarly coordinated their looks last week when they were photographed on a dog walk in Brisbane Bay, hours from Elordi’s Down Under hometown.

They made the getaway, on the heels of their recent Tokyo trip and Hawaii vacation, for the “Euphoria” alum’s birthday, Page Six hears.

“They’re just in that phase where they want to do everything together and things have gotten pretty serious,” a source told us.

The insider called the pair “inseparable” — and claimed Jenner “definitely sees a future” with Elordi.

In fact, Page Six reported last week that the model is so “crazy” about the “Frankenstein” star, she is “not rushing to throw him into the Kardashian machine” since “very few men survive that.”

The source dubbed Elordi “the first guy” Jenner, who previously dated Grammy winner Bad Bunny and NBA player Devin Booker, “has been crazy about in years.”

Elordi’s recent dating history, meanwhile, includes an on-again, off-again relationship with Lori Loughlin’s daughter Olivia Jade Giannulli and a yearlong romance with model Kaia Gerber.

The Golden Globe nominee was first linked to Jenner in April.

Elordi is notoriously private, insisting on “CBS Mornings” in February that he plans to continue having “no relationship with social media.”

He said, “My dream was to be an actor. My dream was to play in the movies … and, for me, that’s about all I can handle.”

Jenner, for her part, told Vogue Australia in 2019 that her relationships are more “sacred” out of the spotlight.

“I personally think that bringing things into the public makes everything so much messier,” the “Keeping Up With the Kardashians” alum noted.