The route from Washington Dulles International Airport (KIAD) in Washington, DC to General Mariano Escobedo International Airport (MMMY) in Monterrey. SkyMeter tracks roughly 3 scheduled flights on this route. The most active operator is LET (LET). Average block time is 4h 16m. Departures average 19 minutes off schedule, with 67% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-800.