United Airlines CUN Terminal United Airlines offers passengers a smooth flying experience from Terminal 2 at Cancun International Airport (CUN). Self-service check-in kiosks, baggage drop-off, and customer service counters are all available at the terminal. While waiting for their flights, travelers can also take advantage of a range of food alternatives and shopping establishments. Terminal 2 is easy to navigate, with polite staff and speedy procedures. United Airlines places a high priority on customer comfort, making sure that passengers have a convenient and enjoyable trip to and from a variety of locations.