Group 1: Flight Cancellations and Delays - Hundreds of travelers were stranded at Cancún International Airport and Lic Benito Juárez International Airport due to at least 29 flight cancellations and numerous delays [1] - A total of 62 flights were delayed and 29 were cancelled at these two major airports during peak travel season, causing significant logistical issues for tourists [2] - Several airlines, including Aeromexico, Viva, Aerobus, and Interjet, reported cancellations and delays, with US and Canadian airlines also suspending flights to parts of Mexico [3][4] Group 2: Impact on Airlines - US carriers such as United Airlines, American Airlines, Southwest Airlines, and Alaska Airlines, along with Canadian airlines like Air Canada and WestJet/Sunwing, cancelled flights to destinations including Puerto Vallarta, Guadalajara, and Manzanillo [4] - Southwest Airlines announced plans to send aircraft to Mexico for repatriating stranded passengers once the situation stabilizes [5] Group 3: Security Concerns - Videos showed panic among travelers at Puerto Vallarta and Guadalajara airports, with reports of armed individuals inside terminals leading to a military operation [6] - The killing of drug lord Nemesio "El Mencho" Oseguera Cervantes triggered violent events in Jalisco, prompting advisories from the US and India for their citizens in Mexico [7][9]