Kourtney Kardashian baby daddy Scott Disick drew ire from the Southwest Airlines gate crew and passengers on a flight from Chicago to MacArthur Airport on Long Island Sunday, according to a fellow flier. In a rush to join a party in the Hamptons, Disick “refused to wait in line [to board] . . . and tried to cut ahead of a young couple holding twin babies,” passenger Jeff Glass, a Merrick, LI, high-school teacher, tells us. “He then tried to cut in front of an older man who said, ‘Who is this schmuck?’ He offered $20 to the gate attendant to let him on ahead of everyone else,” Glass said. “The attendant yelled at him two or three times and he blamed the fact that he had to wait on his ‘secretary.’ ” A “star-struck” flight attendant saved the emergency row for Disick, causing others on board to jeer. But Disick’s rep told us, “He never offered any bribes and didn’t cut in front of a couple with twins. Yes, a flight lady did save him an exit row because she was a fan. The flight had an emergency landing in Detroit, and Southwest had to find another plane and it took 10 hours to get to New York.” Disick finally made it to party at Dune with Kardashian late Sunday night.