More than a quarter of the flights at Denver’s airport leave late, among the worst in America
Sep 17, 2025, 4:38 PM
If you’ve flown out of Denver International Airport and your flight was delayed, you’re definitely not alone!
The Bureau of Transportation released a list of major airports’ on-time departure percentages, ranking 30 major airports across the United States by the most and least on-time departure performances year to date, between June 1 and June 30, 2025.
DIA was listed as one of the lowest for on-time departures over the month of June. Only 73.34% of flights were on time, meaning more than a quarter of all flights in Denver were delayed!
Denver ranked as the bottom third airport with the least number of on-time departures in June. Only Washington, DC (DCA) and Dallas/Fort Worth, TX (DFW) had worse on0time percentages.
Salt Lake City, UT (SLC) had the best percentage of on-time flights at 83.94%.
