How long is the flight from Houston (IAH) to Cancun (CUN)? The flight duration from Houston's George Bush Intercontinental Airport (IAH) to Cancun International Airport (CUN) is approximately 2 hours and 20 minutes. This non-stop flight covers a distance of around 660 miles (1,060 kilometers) across the Gulf of Mexico, making it a convenient option for travelers seeking a quick getaway to the beautiful beaches of Cancun. If you need more information about Iah To Cancun visit the Airlines Group Travel site or contact the live person for your real time support. 🌎Website: https://www.airlinesgrouptravel.com/cheap-group-flights-from/houston-to-cancun #iahtocancun #cheapflightstohoustontocancun #iahtocancunflights #cancuntoiah #aerlingusairlines #airlinesgrouptravel