A flight tracker helps you check a flight’s status in real time or near real time. To use one, open a flight tracking website or app, enter your flight number, select the correct flight and check the latest departure time, arrival estimate, delay status, route progress and available airport information.
Flight trackers are especially useful before leaving for the airport, during a layover, when monitoring a delayed flight or when picking someone up.
However, third-party trackers should not replace official airline or airport information when you need to make decisions about boarding, gates, cancellations, check-in or tight connections.
What is a flight tracker?
A flight tracker is a website, app or built-in phone feature that displays current information about a flight.
Depending on the service and available data, you may be able to see:
- Scheduled and estimated departure times
- Scheduled and estimated arrival times
- Current flight status
- Delays or cancellations
- Route progress
- A live flight map
- Departure and arrival terminals
- Gate information
- Aircraft type
- Historical flight data
Not every tracker provides the same information. Gate, terminal, baggage and timing updates can also appear at different times across flight trackers, airline apps, airport screens and official airport systems.
If you use an iPhone, you may not even need a separate app for a quick status check. You can also track flights on iPhone using iMessage or Spotlight Search.
How does a flight tracker work?
Flight trackers can combine several types of aviation data to build a picture of where an aircraft is and what is happening with a flight.
One important source is Automatic Dependent Surveillance-Broadcast, or ADS-B.
According to the U.S. Federal Aviation Administration, ADS-B Out broadcasts information including an aircraft’s GPS-derived location, altitude and ground speed to ground stations and other aircraft. The FAA says ADS-B Out broadcasts this information once per second.
Flight-tracking platforms may combine aircraft-position data with other available information, such as flight schedules and operational data, to display flight status and timing information.
This helps explain why a flight can appear to move across a tracker’s map while some airport information, such as its gate, may still be unavailable.
It also explains why two flight trackers do not necessarily display exactly the same information at exactly the same moment. Data sources, processing times and coverage can vary.
A tracker should therefore be treated as a useful monitoring tool rather than the final authority for operational decisions.
Which flight tracker should you use?
The best option depends on what you want to know.
Dedicated services such as Flightradar24 and FlightAware are examples of flight-tracking platforms travelers may use to follow aircraft and flight progress. Different services offer different combinations of live maps, flight-status information, aircraft details, historical information and alerts.
An airline app is usually more useful when you are actually traveling and need information connected to your booking, such as check-in, boarding passes, baggage information, rebooking or airline-specific disruption updates.
Airport websites and departure screens are particularly useful for terminal and gate information.
You do not need to rely on only one source.
A practical rule is:
- Use a flight tracker to monitor aircraft progress and general flight status.
- Use your airline for boarding, check-in, cancellations, rebooking and booking-specific instructions.
- Use the airline and airport screens to confirm terminal and gate information when you are at the airport.
This combination gives you a useful overview without treating a third-party tracker as the final operational authority.
When should you use a flight tracker?
A flight tracker is most useful when your plans depend on the latest flight timing.
Before leaving for the airport
Check your flight before leaving home or your hotel. You may spot a delay or schedule change before starting your journey to the airport.
However, do not automatically arrive late just because a third-party tracker reports a delay. Check the airline’s latest instructions as well, particularly when check-in or baggage-drop deadlines are involved.
If you are preparing for an international journey, this international travel checklist covers other essentials to check before departure.
During a layover or connecting flight
Track your incoming flight and your next departure if you have a connection.
Even a relatively small delay can matter when your connection is tight. A tracker can help you understand how your incoming flight is progressing while your airline provides the operational information you need for the connection.
If your trip involves several countries, particularly within Europe, it can also help to plan your connectivity in advance. This guide to the best eSIM for Europe cross-border travel explains how regional eSIM options can make it easier to stay connected while moving between destinations.
When picking someone up
A tracker can give you a more useful estimated arrival time than relying on the original booking time alone.
Remember that landing time is not the same as the time a passenger will leave the airport.
After landing, the aircraft may still need to taxi to its gate. The passenger may then need to disembark and, on some international journeys, pass through immigration, baggage claim and customs before reaching the arrivals area.
When you want automatic alerts
Many flight-tracking apps let you turn on notifications for delays, cancellations, departure changes, arrival changes and sometimes gate updates.
This can be easier than repeatedly refreshing the flight page throughout the day.
How to use a flight tracker step by step
The easiest way to use a flight tracker is to search by flight number and then confirm that the date and route match your booking.
1. Find your flight number
Look for the flight number on your:
- Booking confirmation
- Boarding pass
- Airline app
- Travel itinerary
A flight number usually combines an airline code with a number, such as SQ322, BA16 or EK204.
2. Open a flight tracker website or app
Open your preferred flight-tracking website or app.
Browser-based trackers are convenient for occasional checks because you do not need to install anything.
A dedicated flight-tracking app may be more useful if you regularly track flights or want push notifications.
3. Enter the flight number
Enter the flight number exactly as it appears on your booking.
If you do not know the number, many trackers also let you search using details such as:
- Airline
- Departure airport
- Arrival airport
- Travel date
Route searches can return several similar flights, so check the details carefully before selecting one.
4. Check the operating airline if the flight number does not work
If your flight number does not appear, you may be traveling on a codeshare flight.
The U.S. Department of Transportation defines codesharing as a marketing arrangement in which an airline places its designator code on a flight operated by another airline and sells tickets for that flight.
This means the airline named prominently on your ticket is not necessarily the airline operating the aircraft.
Check your booking for wording such as “operated by” and try searching for the operating carrier’s flight number instead.
You can also search by route and date.
5. Select the correct flight
If several results appear, confirm:
- Airline
- Departure airport
- Arrival airport
- Travel date
- Departure time
This is particularly important on busy routes where the same airline may operate several flights per day.
6. Check the current flight status
Look at the flight’s current status first.
Common labels include:
- On time
- Delayed
- Boarding
- Departed
- In air
- Landed
- Cancelled
The wording varies between platforms, but the status usually provides the quickest overview of what is happening.
7. Compare scheduled and estimated times
Next, compare the scheduled times with the latest estimated times.
For example, if a flight was scheduled to leave at 14:00 but now has an estimated departure of 15:10, the tracker is indicating that the expected departure has moved later.
Estimated times can continue to change as new information becomes available.
8. Check the live map, terminal and gate
Many trackers display a live or near-real-time map showing the aircraft’s route and approximate progress.
Depending on the platform and available data, you may also see:
- Departure terminal
- Arrival terminal
- Gate
- Aircraft type
- Flight duration
Gate and terminal information can change quickly. If that information determines where you need to go, confirm it through the airline or airport.
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9. Turn on flight alerts
If your tracker supports notifications, enable them for the flight.
Alerts may cover:
- Delays
- Cancellations
- Departure changes
- Arrival changes
- Gate changes
- Flight status updates
Notifications are particularly useful when you are traveling through an airport and do not want to keep checking the tracker manually.
What do scheduled, estimated and actual flight times mean?
Flight trackers can show several different times for the same journey. Understanding them makes the information much easier to use.
Scheduled departure is the departure time originally listed in the flight schedule.
Estimated departure is the latest expected departure time based on the information currently available.
Actual departure indicates that the departure event has already occurred according to the data being used by the platform.
The arrival side can also contain different milestones.
A flight’s estimated arrival is the current prediction for when it will arrive, while its actual arrival reflects a completed arrival event according to the tracker’s data.
It is also important to distinguish landing from gate arrival. An aircraft can touch down and then spend additional time taxiing before reaching its gate.
For someone waiting in the arrivals hall, there may be another delay after that while the passenger disembarks and completes any required immigration, baggage claim or customs procedures.
What information can a flight tracker show?
The exact information depends on the tracker, airline, airport and stage of the journey.
Departure and arrival times
Most trackers show scheduled times alongside updated estimates. Comparing them is one of the quickest ways to identify a delay.
Flight status
The tracker may indicate whether the flight is on time, delayed, boarding, departed, in the air, landed or cancelled.
Live flight map
Some services show the aircraft’s position and route on a map once tracking information becomes available.
ADS-B is one technology that can contribute to aircraft-position tracking. The FAA describes ADS-B Out as broadcasting information including an aircraft’s GPS location, altitude and ground speed to ground stations and other aircraft.
Gate and terminal information
Gate and terminal details may be available, but they are not guaranteed and can change quickly.
Aircraft information
Some trackers identify the aircraft type and may provide additional information about the aircraft associated with the flight.
Historical flight data
More advanced platforms may show previous flight performance, including recent departure times or delay patterns.
Historical performance can provide useful context, but it does not predict exactly what will happen to your flight.
Why can a flight tracker show a different time from the airline?
A tracker, airline app and airport display may occasionally show different estimates.
That does not automatically mean one of them is wrong.
Flight information can come from different systems, and platforms may process or refresh their data at different times. Estimated times can also change as the airline, airport or tracker receives new information.
This distinction becomes especially important during disruptions.
A third-party tracker may be useful for understanding the aircraft’s progress, but the airline controls your booking and provides instructions about issues such as boarding, rebooking and cancellations.
If two sources disagree about something that affects what you need to do at the airport, follow the latest official instructions from your airline or airport.
Flight tracker vs airline app
Flight trackers and airline apps overlap, but they serve slightly different purposes.
A flight tracker is useful for:
- Quick flight-status checks
- Live or near-real-time route maps
- Tracking someone else’s flight
- Monitoring several airlines
- Viewing aircraft information
- Checking a flight without managing the booking
An airline app is usually more useful for:
- Check-in
- Boarding passes
- Booking management
- Baggage information
- Seat changes
- Airline-specific notifications
- Rebooking or disruption assistance
For many travelers, using both works best.
Use the tracker for a convenient overview of the flight and the airline or airport for information that determines what you need to do.
Can you use Google Flights to track a flight?
Google Flights can track airfare prices, but that is different from using a dedicated flight tracker to follow a flight’s live operational status.
According to Google Travel Help, Google Flights allows users to track prices for particular routes, dates and specific flights. Google can then provide updates when tracked prices change significantly.
That makes Google Flights useful while you are planning a trip and deciding when to book.
If your flight is already booked and you want to monitor delays, estimated arrival, route progress or operational updates on the day of travel, use a dedicated flight tracker or your airline’s official app instead.
The distinction is simple:
Google Flights price tracking helps you monitor airfare before booking. A flight-status tracker helps you monitor the actual journey.
Common problems when using a flight tracker
Flight trackers are convenient, but several common issues can cause confusion.
The flight does not appear
First, check the flight number, route and travel date.
If everything looks correct, check whether the ticket is a codeshare and search using the operating airline’s flight number.
Searching by route and date can also help.
Different platforms show different times
Flight trackers, airlines and airports can receive or process updates differently.
Compare the information, but use the airline or airport as the primary operational source when the difference affects your journey.
Gate information is missing
Not every tracker has complete gate information for every flight or airport.
If no gate appears, check your airline app or the airport’s departure screens instead.
A gate changes after you checked it
Airport operations can change quickly. A gate shown earlier may no longer be correct by boarding time.
Check the airport screens again once you are at the terminal.
A codeshare number causes confusion
If the marketing airline’s flight number produces no useful result, look for the operating carrier on your booking and search using that number.
Tips for using a flight tracker while traveling
A few simple habits make flight trackers more useful:
- Check before leaving for the airport. Look for major delays or schedule changes while still following your airline’s check-in and baggage-drop requirements.
- Turn on alerts. Notifications are easier than repeatedly refreshing a flight page.
- Check again during a layover. Monitor your next departure when you have a connection, particularly if your incoming flight is delayed.
- Use official sources for critical decisions. Check your airline or airport when information affects boarding, cancellations, gates, check-in or connections.
- Keep internet access ready. Flight information can change while you are traveling to the airport or moving between terminals.
Using mobile data for flight updates
Mobile data is useful on travel days for checking flight status, delay alerts, gate information, airline apps, airport maps and transport options while you are on the move.
It can be particularly helpful during international connections or after landing, when relying on airport Wi-Fi may not always be convenient.
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FAQs
Is a flight tracker accurate?
A flight tracker can be useful for checking flight status, estimated timing and route progress, but the information available to different services can vary.
For boarding, gate changes, cancellations and tight connections, confirm the latest operational information with your airline or airport.
Can you track a flight without a flight number?
Yes. Many flight trackers let you search using details such as the airline, departure airport, arrival airport and travel date.
A flight number is usually quicker because it narrows the search more precisely.
How do flight trackers know where planes are?
Flight trackers can use aircraft-position information and other aviation data.
One important technology is ADS-B. According to the FAA, ADS-B Out broadcasts information including an aircraft’s GPS-derived position, altitude and ground speed to ground stations and other aircraft.
The exact data sources and coverage depend on the tracking service.
Do flight trackers show gate changes?
Some flight trackers show gate information when it is available, but coverage varies and gates can change quickly.
Confirm your gate using your airline or the airport’s official information.
What is the best way to track a delayed flight?
Use a flight tracker with alerts enabled to monitor the aircraft and changing estimated times.
At the same time, check your airline’s official app or website for information affecting check-in, boarding, connections, cancellations or rebooking.
Can Google Flights track a flight in real time?
Google Flights’ documented tracking feature focuses on airfare prices, including price tracking for routes, dates and specific flights.
If you want to monitor the operational status of an already-booked flight, use a dedicated flight tracker or your airline’s official app instead.
