Michael O’Leary has been running Ryanair for the past 30 years — the longest tenure of any major airline boss. During that time he has turned a paltry operation that flew 200,000 customers a year into a low-cost behemoth, with passenger numbers set to reach close to 200 million this year. WSJ’s Benjamin Katz profiles the colorful CEO, who is now on the verge of earning a more than $100 million bonus.  Further Reading: - The F-Bomb-Dropping Airline CEO About to Earn a $100 Million-Plus Bonus  Further Listening: - How Southwest Airlines Melted Down  - A Hole in a Plane and a Headache for Boeing  - The Love Triangle Over Spirit Airlines  Learn more about your ad choices. Visit megaphone.fm/adchoices