Based in the South Hall of Denver International Airport (DIA), the Jeppesen Terminal is home to Qatar Airways DIA Terminal. Make sure to arrive at least three hours before your foreign flight for a smooth and efficient travel experience. You can check in online 24 hours before to departure. Premium travelers on Qatar Airways can access partner lounges at DIA even though the airline does not have a dedicated club there. For help with rebooking if you miss your flight, get in touch with Qatar Airways customer support right away.