Where to find real-time flight delay information

The fastest way to check if your flight is delayed is to go directly to your airline's website or mobile app and enter your confirmation number and last name. Most airlines show current gate, boarding time, and any delays within seconds. If you do not have your confirmation number, you can search by flight number instead — airlines list this on your booking email or ticket.

The Federal Aviation Administration (FAA) also publishes real-time delay data on its website at faa.gov. The FAA's National Airspace System Status page shows which airports are experiencing delays, how long those delays typically are, and what is causing them — weather, staffing, equipment issues, or traffic volume. This is useful if you want to know whether the problem is specific to your airline or affects the whole airport.

FlightAware and FlightRadar24 are free tracking websites that show live flight positions, estimated arrival times, and delay status. You can search by flight number, airline, or airport. These sites pull data from multiple sources and often update faster than airline websites during chaotic travel days.

Key Takeaways

  • Your airline's website or app is the official source for your specific flight's status and will show delays, gate changes, and boarding time.
  • The FAA's National Airspace System Status page shows whether delays are affecting your entire airport or just certain airlines.
  • FlightAware and FlightRadar24 track live flight positions and can show delays even when airline websites are slow or overloaded.
  • Text and email alerts from your airline are the most reliable way to stay informed if you cannot check constantly.
  • Airport websites sometimes post ground stop notices or weather warnings before delays show up on flight trackers.

What causes flight delays and how long they usually last

Weather is the most common reason for delays — thunderstorms, fog, snow, or high winds can ground planes or slow air traffic. Weather delays often last 30 minutes to several hours depending on how fast the system moves through the airport. You can check the weather forecast for your departure and arrival cities to get a sense of whether delays are likely.

Mechanical issues, crew scheduling problems, and air traffic congestion also cause delays. Mechanical delays can be quick (30 minutes) or long (hours or overnight) depending on what needs fixing. Crew delays happen when a pilot or flight attendant is running late from a previous flight. Air traffic delays occur when an airport is too busy to land or take off planes on schedule — these often clear up within an hour once traffic thins.

Late-arriving aircraft is another common cause. If the plane flying your route is delayed on a previous leg, your flight will not leave on time. Checking the aircraft's history on FlightAware can show you whether it is running behind.

How to get notified about delays without checking constantly

Most airlines let you set up text or email alerts for your specific flight. Log into your airline account, find your booking, and look for a "notifications" or "alerts" option. You can usually choose to be notified of gate changes, delays, and cancellations. These alerts arrive within minutes of any status change.

Your airline's mobile app often sends push notifications automatically if you have notifications turned on in your phone settings. This is faster than checking email, especially if you are at the airport or driving.

If you are tracking a flight for someone else — a family member or friend — FlightAware lets you add a flight to your account and receive alerts without needing the passenger's confirmation number. This is useful if you are picking someone up and want to know when to leave for the airport.

What to do if your flight is delayed

If your delay is under two hours, most airlines do not offer compensation or rebooking — you straightforward wait. Use this time to grab food, charge your phone, or work if you have a laptop.

If your delay is three hours or longer, ask the airline at the gate or customer service desk what they can offer. Some airlines provide meal vouchers, hotel rooms (if the delay is overnight), or rebooking on the next available flight. These policies vary by airline and are not legally required in the United States, so what you receive depends on the airline's own rules.

If you miss a connection because of a delay on your first flight, tell the airline when ready. Most will rebook you on the next flight to your destination at no extra charge, though you may have to wait for the next available seat.

Delays versus cancellations — what the difference means

A delay means your flight will still depart and arrive, just later than scheduled. A cancellation means the flight will not operate at all. Cancellations are less common but more disruptive — you will need to rebook on another flight, which could be the next day.

If your flight is cancelled, your airline must rebook you on the next available flight to your destination at no extra charge. If no flights are available that day, most airlines provide a hotel room and meal vouchers. You can also request a refund of your ticket price instead of rebooking, though some airlines make this harder than it should be.

Delays can turn into cancellations if the problem is not fixed before the airline's crew runs out of legal flying hours. This is why delays late in the day are sometimes cancelled overnight — the crew cannot legally fly after a certain number of hours.

Checking delays at specific airports

If you are flying out of a major airport, that airport's website usually has a departures board showing current delays. Search "[airport name] departures" — for example, "LAX departures" or "JFK departures." These boards update every few minutes and show gate numbers, boarding times, and delay status for all airlines.

Some airports also post ground stop notices or weather alerts on their websites before delays appear on flight trackers. If you are flying during severe weather, checking the airport website directly can give you a heads-up before your airline updates its system.

The TSA also publishes wait times at security checkpoints on its website. If you are worried about missing your flight because of a long security line, you can check typical wait times for your airport and time your arrival accordingly.

Why your airline's app might show a different time than FlightAware

Airline apps show the airline's official scheduled and estimated times. FlightAware and similar trackers show real-time data from radar and aircraft transponders, which can be more current during fast-changing situations. If FlightAware shows a different arrival time than your airline app, FlightAware is usually more accurate because it is tracking the actual aircraft position.

During very busy travel days, airline websites can lag behind reality by 10 to 30 minutes. If you see a big difference between your airline's estimate and FlightAware's, trust FlightAware — it is pulling live data rather than a scheduled estimate.

Both sources are free and worth checking if you want the most complete picture. Your airline app tells you official policy and rebooking options; FlightAware tells you where the plane actually is.

Frequently Asked Questions

How do I know if my flight is delayed before I get to the airport?

Check your airline's website or app using your confirmation number, or search your flight number on FlightAware. Set up text alerts through your airline so you get notified automatically if the departure time changes. Most delays show up 30 minutes to an hour before the scheduled departure time.

Can I get my money back if my flight is delayed?

In the United States, airlines are not required to refund tickets for delays, no matter how long. You are may have access to to the flight you booked. If you choose to cancel instead of waiting, you can request a refund, though some airlines make this difficult. International flights have different rules depending on the country.

What should I do if I am going to miss my connection because of a delay?

Tell a gate agent or airline representative as soon as you know. They can rebook you on the next available flight to your final destination at no charge. Do not wait until you land — the sooner you notify the airline, the better your rebooking options.

Is there a way to avoid flights that are frequently delayed?

Check FlightAware's statistics for your specific route and time of day. Some routes and times are more prone to delays than others. Morning flights are often more reliable than evening flights because delays compound throughout the day. Avoiding tight connections also protects you if a delay does happen.

Do I have to pay extra to change my flight if it is delayed?

If your airline cancels or significantly delays your flight, you can rebook on another flight to the same destination at no extra charge. If you want to change to a different destination or airline, you may have to pay a change fee or fare difference, depending on the airline's policy.