Self-made millionaires and billionaires who still fly commercial

Just because you can afford nearly anything you want, doesn't mean you have to spend excessively. As self-made millionaire Barbara Corcoran tells CNBC Make It : "I think everybody is cheap in some way."

These three self-made multimillionaires and billionaires, including Corcoran, like to save when it comes to flying.

Barbara Corcoran

Partly because getting to ride in a plane at all still feels like a privilege to her, Corcoran keeps it cheap when she's on the road : "I'll never spend money on a business class or a first class ticket. Forget about it. I'm always in coach. I just couldn't fathom justifying that."

That said, she adds, "I have a routine that makes me feel better than everybody in first class."

The "Shark Tank" star doesn't board a flight without a pre-packed gourmet meal. She brings fresh fruit, fancy cheese, a baguette or croissant and "always a small bottle of wine," she tells Torabi, "which, of course, you can't bring through security but you can get it at Shake Shack in the airport."

Jim Koch

Self-made billionaire and founder of The Boston Beer Co. Jim Koch also refuses to spring for expensive plane tickets. As Business Insider reports , he always flies coach. And he makes sure his employees join him in the cheap seats, including executives.

"On those long trips to Munich" for beer-ingredient research, "the upgrade from coach to first class is an extra $5,000," he writes in his memoir, " Quench Your Own Thirst ."

"I can't make the math work — the average person at Boston Beer makes $55,000 a year. How can I justify paying over a month's salary for a first-class ticket? Is having me get a little more legroom and a better meal really more valuable to the company than what the average person contributes every month? I've never believed that."

Arik Kislin

Arik Kislin is the part-owner of a private jet company, but he still flies commercial, at least sometimes.

"It's a lot less luxurious," the self-made multimillionaire tells CNBC Make It . "You have to deal with all the nuances of the airport." But it's "an economical decision," especially when he's on his own and when he's "going across the pond."

"There's a lot more options to fly commercial. There's a lot more flights going to business cities," he says, and that availability of flights is convenient. "If I wanted to go to London, I'd probably have 20-plus flights to choose from."

For those reasons, he says, "it's just easier."

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Don't miss: Barbara Corcoran flies coach but her routine makes her 'feel better than everybody in first class'

Video by Beatriz Bajuelos Castillo

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