One of the victims of the Bahamas helicopter crash that killed billionaire tycoon Chris Cline was set to be the maid of honor in her sister’s wedding, friends told The Post.

Delaney Wykle, 22, who recently graduated from West Virginia University, helped throw a bridal shower for her only sister, Makayla, days before she traveled to Cline’s private island for a July 4 celebration, friends said.

She was joining Cline’s 22-year-old daughter, Kameron, whom she met in grade school in West Virginia before the heiress moved to Florida.

“They remained friends. They were beautiful, kind girls,” said family friend Tammy Cline, who is a distant relative of the entrepreneur.

But their trip was cut short when Kameron experienced a medical emergency, prompting her dad to try to rush her to a Florida airport in his chopper.

Wykle’s family said she got on the flight to lend a hand, since she had passed her nursing board exams earlier in the week.

“Even on this trip, she was taking care of her friend. And that was just Delaney,” her aunt, Angie Foster, told news station WVVA.

Shortly after taking off, the helicopter plunged into the ocean, killing all seven people aboard, authorities said. The wreckage was discovered about two miles from Big Grand Cay.

Wykle, the tycoon and his daughter died along with pilot Geoffrey Lee Painter, 52, and family friend David Jude, 52, of Kentucky. Kameron’s college friends Brittney Searson, 21, and Jillian Clark, 22, were also among the victims.

The cause of the crash is under investigation, but authorities said a full report might not be released for two years.