While Colorado is home to quite a few airports, its largest travel hub, Denver International Airport, is by far the most notorious for a number of reasons.

Denver International Airport is home to countless conspiracy theories, eerie murals, gargoyles, Blucifer, and is one of the largest and busiest airports of its kind.

With this in mind, it should come as no surprise that Denver International Airport is also infamous for the vast number of flight delays that are experienced there.

Where Does Colorado's Largest Airport Rank for Flight Delays?

A study conducted by Transfeero suggests that Denver International Airport experiences the second-most amount of flight delays in the nation.

Which Airports Besides Colorado's Largest are Notorious for Flight Delays?

On a national scale, Denver International Airport is rivaled in flight delays in 2025 by Dallas/Fort Worth International Airport.

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The third-most flight delays in the nation are experienced at Ronald Reagan Washington International Airport in Arlington, Virginia, followed in fourth place by Miami International Airport, and Hartsfield-Jackson Atlanta International rounds out the top five when it comes to flight delays in 2025.

Read More: Unfinished Business: Stephen King's Abandoned Stapleton Airport Story

Other airports that landed on the top ten list of flight delays in 2025 include Fort Lauderdale-Hollywood International, Baltimore/Washington International Thurgood Marshall in Anne Arundel County, Maryland, George Bush Intercontinental/Houston, Orlando International, and Charlotte Douglas International.

Check out the full list of the most notorious airports when it comes to flight delays in 2025 here.

Explore Denver International Airport + Conspiracies

An employee of Denver International Airport debunks many of the well-known conspiracy theories.

Gallery Credit: Nate Wilde

Learn About Denver International Airport's 'Blucifer'

Denver International Airport replaced 'Stapleton' as Colorado's biggest airport and has been surrounded in controversy ever since, including the 'Blue Mustang' statue affectionately known as 'Blucifer.'

Gallery Credit: Nate Wilde

There is Actually a Freeway Under Colorado’s Biggest Airport

There are countless conspiracy theories about Colorado’s Denver International Airport, but one thing we know for sure is that there is an actual freeway deep underground.

Gallery Credit: Nate Wilde