Most Delayed Airports Right Now
Live ranking of major US airports by current flight delay severity. Built from FAA NAS arrival, departure, ground stop, and ground delay program data.
Updated 08:28 ET
No significant delays right now
All major US airports are operating normally. Check back during peak hours or weather events.
How we rank airport delays
Each airport gets a composite delay score weighted across four signals: arrival delay (40%), departure delay (30%), an active ground stop (+30 points), and an active ground delay program (+20 points). We pull the underlying numbers directly from the FAA National Airspace System status feed and refresh them every few minutes. Airports with no active delays, ground stops, or programs are removed from the leaderboard so the ranking only shows airports that are actually struggling right now.
What is a ground stop?
A ground stop is a short-term FAA traffic management initiative that halts all departures bound for a specific airport. Ground stops are issued when an airport cannot accept incoming traffic โ usually due to severe weather, runway closures, equipment outages, or major staffing shortages. Flights already in the air may divert. New departures wait at their origin airport until the ground stop is lifted.
What is a ground delay program (GDP)?
A ground delay program (GDP) is a longer-term measure that meters the rate of arrivals into a constrained airport by assigning each inbound flight a controlled departure time. Unlike a ground stop, departures still happen โ just on a slower cadence. GDPs typically last several hours and add average delays of 30 to 90 minutes to affected flights. They are common at airports like LGA, EWR, JFK, and SFO when weather or capacity reduces the arrival rate.