Jason Momoa is training to be a flight attendant.

The “Aquaman” star surprised an entire flight headed from Los Angeles to Hawaii.

The actor played water boy on the flight and served drinks to unsuspecting fans.

Hawaiian Airlines has partnered with Momoa’s water company, Mananalu.

He handed out bottles of the aluminum bottles filled with purified water.

Momoa wore a pink flower in his hair, a beaded necklace, gray blazer and black top.

He shared a behind the scenes video to his Instagram on Tuesday, August 2.

“Mahalo @hawaiianairlines for allowing me and my team to capture this special moment. It's a dream come true. My idea to create @Mananalu.water came to me while on a flight,” Momoa wote.

“We're on a mission to end single-use plastic. Drink one, remove one. For every bottle of Mananalu sold, we remove one plastic bottle from the ocean.”