Nearly 700 flights are delayed at Denver International Airport on Tuesday as thunderstorms hinder arriving flights, according to flight data and the Federal Aviation Administration. Related Articles Transportation | Denver’s airport turned off filter status lights at all water bottle filling stations. Here’s why — and what’s changing. Transportation | United flyers can turn points into Red Rocks Amphitheatre tickets Transportation | Wind gusts cause over 600 flight delays, cancellations Tuesday at Denver International Airport Transportation | Wind gusts as high as 81 mph reported in Colorado Transportation | Over 1,100 flights delayed, canceled Monday at Denver International Airport There were 686 delayed and 11 canceled flights as of 5:30 p.m., according to the flight tracking website FlightAware. Most of the delays impacted Southwest and United Airlines flights. Arriving flights are delayed by an average of 51 minutes because of thunderstorms, according to the Federal Aviation Administration.