What's causing delays at airports today

Flight delays right now depend on where you are flying and what time of day. The most common causes are weather — thunderstorms, fog, or wind that grounds planes or slows taxiing — and volume. Peak travel hours (early morning, late afternoon, early evening) create bottlenecks at busy airports like Atlanta, Dallas, and Chicago, where planes queue for runways. Air traffic control staffing, mechanical issues on individual aircraft, and crew scheduling problems also add delays on any given day.

You can see what is happening at your specific airport by checking the FAA's website or your airline's flight status page. Both update in real time and show whether delays are weather-related, due to air traffic, or mechanical. If your flight shows a delay but no reason yet, check back in 15 minutes — the cause usually appears once ground crews assess the situation.

Delays are not the same across the country. A thunderstorm in Florida affects only Florida airports. A staffing shortage at a major hub like Denver can ripple across the entire network because connecting flights depend on crews and planes arriving on time. Winter weather in the Northeast and Midwest creates widespread delays; summer thunderstorms in the South do the same, but only in that region.

Key Takeaways

  • Weather and airport volume are the two largest causes of delays, and both change hour to hour.
  • The FAA website and your airline's app show the current reason for any delay at your airport.
  • Delays at major hubs like Atlanta, Dallas, and Chicago spread to connecting flights nationwide.
  • Mechanical delays on your specific aircraft usually resolve within one to three hours, while weather delays can last all day.
  • Arriving at the airport early does not prevent delays — the delay happens on the tarmac or in the air, not at check-in.

How to check delays before you leave for the airport

Go to the FAA's website (faa.gov) and click on "Airport Status and Information" to see real-time delays at your departure and arrival airports. The page lists every major airport and shows whether delays are active, how long they are, and why. You can also search by airport code — for example, ATL for Atlanta or ORD for Chicago.

Your airline's website or mobile app is faster if you already have a booking confirmation. Log in, find your flight, and the status page shows whether it is on time, delayed, or cancelled. Most airlines update this information every 5 to 10 minutes. Set a notification in the app so you do not have to keep checking manually.

FlightAware and similar tracking sites show delays plus the specific aircraft your flight uses and where it is right now. This is useful if your flight is delayed because the plane is coming from another city — you can see whether it is still an hour away or already on the ground.

What happens if your flight is delayed

If your flight is delayed less than one hour, the airline usually holds the departure time and updates it as the situation changes. You should still arrive at the airport at your normal time, because the delay may clear. If the delay stretches past one hour, the airline may offer a rebooking on a later flight the same day or the next day.

You are not owed money for a delay under U.S. law, but you may be owed a meal or hotel if the delay is the airline's fault and keeps you overnight. Weather delays do not trigger this — the airline is not responsible for storms. Mechanical delays do. Check your airline's policy on its website or ask at the gate what they will cover.

If your flight is cancelled, the airline must rebook you on the next available flight at no extra cost, or refund your ticket. If the cancellation is weather-related, they are not required to pay for a hotel, but many do anyway. If it is mechanical or staffing, most airlines will cover a hotel for an overnight wait.

Delays during peak travel times

Summer (June through August) and the weeks around Thanksgiving and Christmas see the most delays because airports are at or near capacity. A single weather event or mechanical issue cascades through the system because there are no empty time slots to absorb the disruption. If you are flying during these periods, book early morning flights when possible — they have fewer upstream delays.

Friday afternoons, Sunday evenings, and Monday mornings are the busiest times of the week. Wednesday and Thursday midday flights are usually the least crowded. If you have flexibility, shifting your travel by even one day can cut your delay risk significantly.

Weather delays and how long they last

Thunderstorms are the fastest-moving cause of delays. A storm can ground flights for 30 minutes to two hours, then clear just as quickly. Fog, especially on the West Coast, can last all day and is harder to predict. Winter snow and ice in the Northeast and Midwest can shut down airports for 12 to 24 hours.

If your flight is delayed by weather, the airline cannot do much except wait. Planes cannot take off in severe thunderstorms or low visibility. Check the weather forecast for your departure and arrival cities — if a storm is moving through, expect delays. If the forecast shows clear skies by afternoon, a morning delay may resolve by evening.

Mechanical delays and what they mean

A mechanical delay means the aircraft has a problem that must be fixed before it can fly. These range from minor (a lavatory that will not flush, a seat that will not recline) to serious (an engine issue, a hydraulic leak). Minor issues take 30 minutes to an hour. Serious issues can ground the plane for hours or all day if a part must be ordered.

The airline will not tell you the exact problem unless you ask at the gate. They will say "mechanical delay" and give an estimated time. If the delay stretches past two hours, ask whether the airline is bringing in a different aircraft instead of waiting for the repair. Sometimes that is faster.

Crew and connection delays

A crew delay means the pilots or flight attendants for your flight are not at the airport yet. This usually happens because they were on a previous flight that was delayed, or they are coming from another city. These delays are almost always under one hour because crews are scheduled with buffer time.

A connection delay is different — your flight is waiting for passengers or crew from an incoming flight. If you are connecting, this is why you see your flight delayed even though the weather is clear at your destination. The airline is waiting for the plane or crew to arrive from somewhere else.

Frequently Asked Questions

Can I get a refund if my flight is delayed?

No. U.S. law does not require refunds for delays, only for cancellations. You are owed a meal or hotel only if the delay is the airline's fault (mechanical, crew scheduling, overbooking) and keeps you overnight. Weather delays do not trigger compensation.

Should I go to the airport if my flight shows a delay?

Yes, unless the delay is more than three hours or the flight is cancelled. Delays change quickly, and your flight may depart sooner than the estimate. If you are not there, you will miss it. Check the status one more time 30 minutes before your scheduled departure.

What is the difference between a delay and a cancellation?

A delay means the flight will depart later but will still fly. A cancellation means the flight will not operate that day. Cancellations require the airline to rebook you or refund your ticket. Delays do not.

Why do delays at one airport affect flights everywhere?

Major airports like Atlanta and Dallas are hubs where many airlines connect passengers. If a plane is delayed leaving Atlanta, it arrives late to its next city, which delays the next flight that plane operates. This ripples across the network until the plane catches up, usually by evening.

Is there a time of year when delays are less common?

September and early October, plus late April and May, have the fewest delays because travel is lighter and weather is stable in most of the country. Winter (December through February) and summer (June through August) are the worst months.