PUNTA GORDA, Fla.—The wingtip of a plane loaded with passengers clipped the auxiliary power unit of a parked empty aircraft nearby as it pushed back from the gate at a small Florida airport Monday. Both planes at Punta Gorda Airport are owned by Allegiant Air, according to a statement from the airline, which said there were no injuries. The 136 passengers and six crew members of the Springfield, Illinois-bound plane had to disembark, and the flight was canceled. Passengers had the option of getting on another flight or receiving a full refund. They also were given $250 per itinerary, as well as $150 vouchers, Allegiant said in the statement. “We’re very sorry for the disruption this has caused to our customers’ travel plans,” the statement said.