Mon, 08/28/2023 - 13:21 Tech Insider The longest tarmac delay cited in the investigation was 6 hours and 3 minutes on August 16, 2020, when American diverted 14 flights from Dallas Fort Worth International Airport to San Antonio International Airport due to severe thunderstorms. DANIEL SLIM/AFP via Getty Images Tags Transportation, Airlines, american-airlines, department-of-transportation, flight-delays Source American Airlines fined a record-breaking $4.1 million for lengthy tarmac delay…