How to find which airports have delays today
Real-time delay information comes from the Federal Aviation Administration (FAA), which publishes current conditions at major U.S. airports. The FAA's website at faa.gov lists airports experiencing ground stops, arrival delays, or departure delays, updated every few minutes. You can also check individual airline websites — most carriers post delay notices for their own flights before the FAA updates the broader list.
The fastest route is the FAA's National Airspace Status page, which shows delays by airport code and the reason (weather, traffic volume, equipment issues, or staffing). If you are flying today, check this page within two hours of your departure time, since delays often develop or clear in that window.
FlightAware and FlightRadar24 are third-party tracking sites that pull FAA data and let you search by airport or flight number. Both show historical delay patterns for the same route on past days, which helps you understand whether a delay is unusual or typical for that time of day.
Key Takeaways
- The FAA's National Airspace Status page is the official source and updates every few minutes with which airports have delays and why.
- Weather, traffic volume, and equipment issues are the most common causes, and each one clears on a different timeline.
- Checking two hours before your flight gives you time to contact your airline or rebook if a delay is likely.
- Third-party sites like FlightAware show you historical patterns so you can tell whether a delay is normal for that airport and time of day.
Why delays happen at specific airports
Delays cluster at certain airports because of geography, weather patterns, and traffic volume. Major hubs like Atlanta, Dallas-Fort Worth, Chicago O'Hare, and Los Angeles see delays more often straightforward because more planes use them. When one flight is delayed, it ripples through the system — the aircraft that was supposed to fly that route next is now late, and the crew is out of position.
Weather delays are airport-specific. Thunderstorms, fog, or snow ground flights at one airport while nearby airports stay clear. The FAA may issue a ground stop, meaning no planes can depart until conditions improve. Arrival delays happen when planes are already in the air but cannot land because the runway is full or weather is too severe.
Staffing shortages and equipment maintenance also cause delays at particular airports. If an airport's air traffic control tower is understaffed or a runway is closed for repairs, the FAA limits how many planes can take off or land per hour. These delays are predictable and often posted days in advance.
What the FAA delay categories mean
The FAA uses four categories to describe airport conditions. A ground stop means no departures are allowed until further notice — planes already in the air can land, but nothing new can take off. Ground stops usually last 30 minutes to a few hours and are caused by severe weather or equipment failure.
An arrival delay means planes are landing but slower than normal, usually because of weather, traffic, or a runway closure. Arrival delays of 15 to 30 minutes are common during peak hours. A departure delay means planes are taking off slower than scheduled, often because the airport is waiting for arriving planes to clear the runway or because of staffing limits.
A tarmac delay is different — your plane is already at the gate or on the runway but cannot push back or take off. These are usually short (under 15 minutes) but can stretch longer if weather is severe or if the destination airport is congested.
How to check delays before you leave for the airport
Visit faa.gov and search for your departure airport by code (ATL for Atlanta, ORD for Chicago, LAX for Los Angeles). The page shows current delays in minutes and the reason. If your airport shows no delays but your airline's website shows your flight is delayed, the delay may be specific to that airline or aircraft, not the airport as a whole.
Call your airline directly if the FAA page and the airline website show different information. The airline knows whether your specific flight is delayed, while the FAA page shows airport-wide conditions. A delay of 15 minutes at the airport does not mean your flight is delayed — your airline may have built in extra time.
Check again one hour before departure. Delays often clear or worsen in the final hours before your flight. If a ground stop is in effect, expect your flight to be delayed by at least the length of the ground stop plus 30 minutes for the backlog to clear.
Delays caused by weather versus other reasons
Weather delays are the hardest to predict and the longest to wait out. Thunderstorms can ground an airport for hours, and snow or ice requires runway treatment before planes can land safely. The FAA cannot speed this up — they can only wait for conditions to improve. If your flight is delayed by weather, your airline is not required to rebook you on a competitor's flight, though some do.
Traffic delays are shorter and more predictable. If an airport is congested because of volume, the FAA reduces the number of departures per hour. These delays usually clear within 30 to 90 minutes once traffic thins. Equipment delays (a broken runway light, a malfunctioning radar) can last hours if the repair is complex, but the FAA usually has a timeline.
Staffing delays are rare but can last all day. If an air traffic control tower is short-staffed, the FAA limits departures. These delays are usually announced in advance and affect the same airport for the entire day.
What to do if your airport is experiencing delays
If the FAA page shows a ground stop or significant delays at your departure airport, contact your airline before you leave home. Ask whether your flight is affected and whether you can rebook on an earlier flight or a different route. Some airlines waive change fees during widespread delays.
If you are already at the airport, go to your airline's ticket counter or gate agent. They have access to real-time information and can tell you whether your flight is still on time, delayed, or cancelled. Do not rely on the departure board alone — it updates slowly and may show "on time" even when a delay is likely.
If your flight is cancelled, your airline must rebook you on the next available flight to your destination at no extra cost. If no flights are available that day, the airline must provide a hotel and meals. Keep all receipts — you may be able to claim these costs back, depending on the reason for the cancellation.
Tracking delays for flights you are not on
If you are picking up a passenger or waiting for a connecting flight, use FlightAware to track the incoming flight by flight number. The site shows real-time position, estimated arrival time, and any delays. You can set up alerts so you get a notification when the flight lands or if the arrival time changes.
Airline apps also let you track flights. Enter the flight number and date, and the app will show you the current status and any delays. Most apps update every 5 to 10 minutes during the flight.
Frequently Asked Questions
How often do major airports have delays?
It varies by airport and season. Atlanta, Dallas, and Chicago see delays on about 20 to 30 percent of days during peak travel periods (summer, holidays). Smaller airports have delays less often. Winter weather increases delays at northern airports; summer thunderstorms affect southern airports more.
Can I get a refund if my flight is delayed?
U.S. airlines are not required to refund tickets for delays, even long ones. You are may have access to to a refund only if the airline cancels the flight or if you choose not to take a significantly delayed flight. If the delay is the airline's fault (mechanical issue, crew shortage), some airlines offer vouchers or compensation, but this is not may provide.
What is the difference between a delay and a cancellation?
A delay means your flight will depart or arrive late but will still operate. A cancellation means the flight will not operate at all. Cancellations may have access to you to a refund or rebook; delays do not, unless the delay is extreme (usually over 3 hours) and caused by the airline rather than weather.
Do I need to arrive earlier if my airport is experiencing delays?
Arrive at your normal time. Airport delays do not affect how long security takes or how long you need to reach your gate. If your flight is delayed, you will wait at the gate or in the terminal, not in the security line. Arriving extra early will not help you board faster.
Why does the FAA website sometimes show no delays when my airline says my flight is delayed?
The FAA page shows airport-wide conditions, not individual flights. Your flight can be delayed for reasons specific to that aircraft or crew (mechanical repair, crew running late from a previous flight) even when the airport itself is operating normally. Always check your airline's website or app for your specific flight status.