One of the fastest-growing airports in the world is Denver International Airport.

Last year was Denver International Airport’s busiest on record.

Despite not fully recovering to pre-pandemic levels, airline stocks have seen a surge in passengers returning through the Colorado hub.

Our forecast for 2023 has been exceeded, with an estimated 78 million passengers annually, according to Phil Washington, CEO of the Denver International Airport," said Phil Washington, CEO of the Denver International Airport. "This represents tremendous growth.

DIA, Colorado's airport, opened in 1995 and was initially designed to handle 50 million passengers annually. However, it is now estimated that the airport will see more than 100 million passengers per year by 2027.

In 2019, Denver was the 21st busiest airport worldwide, but by 2023, it had climbed to the sixth position.

Denver International Airport (DIA) reports that United Airlines is its busiest hub, with a 30.7% market share, followed by Frontier Airlines at 9.7% and Southwest Airlines at 46.7%. DIA has recently invested nearly $1 billion in Denver to expand its operations, including adding more gates, flights, and destinations, and opening the largest lounge in its network.

Jonna McGrath, vice president of Denver Airport operations for United Airlines, stated that approximately 60% of their customers are connecting from other locations, while 40% are local Denver residents. She added that Denver is a fast-growing city and their goal is to increase the number of flights to about 650 per day before 2030.

United's Denver operations are being explored by CNBC in a behind-the-scenes look. The video provides more information on how the airport and airline plan to meet demand.