Here’s United Airlines CEO Scott Kirby flying first class to Dallas on… American Airlines. It’s good to fly the competition. He keeps trashing them, though. The dominant reaction to seeing him flying first class on his Dallas-based competitor is, ‘why doesn’t he fly his own airline?’ Scott Kirby was fired as American Airlines President in 2016, immediately becoming President of United Airlines. Then-American CEO Doug Parker explained that they could only retain Kirby or Chief Operating Officer Robert Isom and they picked Isom. Parker wasn’t ready to step down as CEO ( he should have ) and Isom was happy being promoted to President rather than being in a hurry to become CEO. He’s tried to drive American out of Chicago . In something of a revenge deal, Kirby pitched President Trump on his idea of United buying American . He even emailed the United Airlines database how great it would be if he ran the combined carrier. Kirby received $13 million in severance and did not have a non-compete.…