Canva Canva loading...Denver Airport Delays Frustrate Frequent FlyersWhile I may only fly a few times a year in and out of Denver International Airport, only a small handful of occasions have left me delayed. Only Two Airports Ranked Lower Than DIAOut of the 30 airports ranked in the United States, Denver International Airport was 28th on the list with a 73.37 percent on-time percentage. Salt Lake City Tops List for On-Time FlightsSalt Lake City's Airport was the best for on-time departures on the list with an 83.94 percent departure performance. How Far Can You Fly Nonstop Out of Denver International Airport? You can fly to all of these locations without a layover right out of Denver International Airport.