If you've ever stood at the baggage carousel watching everyone else collect their suitcase while yours never appears, you'll know how quickly uncertainty turns into panic. But the good news is that you can track your bags — you just need to understand how.
There isn't one single tool that shows you everything. Instead, tracking works in layers. Your airline might give you basic updates through their app, a tracker like an AirTag can give you an extra level of visibility, and if your bag goes missing, a system called WorldTracer is what airlines use to find and return it.
Key Takeaways
Click each item to mark as read
- 1✓
Your bag is not tracked continuously - scans only happen at specific checkpoints.
Typical scan points: check-in, aircraft loading, sometimes transfers, and arrival carousel. Between these points there is no live feed - just the last known position in the system.
- 2✓
British Airways has the best tracking in the UK - their app shows your carousel before landing.
BA invested in RFID scanning at Heathrow that feeds directly into the passenger app. Most other airlines use the same infrastructure but don't share the data with passengers.
- 3✓
An AirTag goes silent during the flight - that's completely normal, not a red flag.
AirTags and SmartTags rely on Bluetooth signals from nearby phones. At 35,000 feet there are no phones to relay the signal. The last update is typically the departure airport.
- 4✓
If your bag doesn't arrive, report it before leaving - your PIR number triggers the search.
Once you have a PIR, your bag is entered into WorldTracer - the global system used by 400+ airlines. Without a PIR reference, there is no formal active search for your bag.
- 5✓
Track your missing bag at worldtracer.aero using your PIR number - covers 400+ airlines.
WorldTracer is operated by SITA and IATA. Updates aren't always instant, but it's the most comprehensive cross-airline view available to any passenger globally.
How your bag is tracked from the moment you check in
When you hand over your suitcase at check-in, it is immediately tagged with a barcode label. That label contains a ten-digit number, often called the bag's "licence plate", which links it directly to your booking. From that moment on, every time your bag passes through a scanner, its location is recorded.
That sounds super-precise, but in reality, it simply creates a series of snapshots rather than a live feed. Your bag is scanned when it enters the system, when it is loaded onto the aircraft, sometimes during transfers, and again when it arrives. In between those points, there is no visible movement.
This is why your bag tag is so important. That small sticker you're given at check-in is the only thing tying your bag to you in the system. If anything goes wrong, it is the first thing airline staff will ask for.
The different ways you can track your bag
Passengers often assume there is one universal way to track a suitcase, but in practice, there are three very different methods, and each one tells you something slightly different.
1. Your airline's tracking system
Some airlines, most notably British Airways, have invested in systems that give passengers updates through their app. If you are flying into Heathrow, for example, BA will often tell you which carousel your bag is heading to shortly after landing. It is not real-time tracking, but it is the closest thing to it that most passengers will experience.
Other airlines, including easyJet, Wizz Air, and TUI, take a more limited approach. They do track bags internally, but they do not share that information with passengers during the journey. Their tools only really come into play once a bag has been reported missing.
2. Using a tracker of your own
The second option is using your own tracker, such as an Apple AirTag or an Android equivalent like a Tile or Samsung SmartTag. These devices do not rely on the airline at all. Instead, they send out a Bluetooth signal that is picked up by nearby phones and relayed back to you.
What they are particularly good at is confirming whether your bag made it onto the plane, whether it has arrived at the correct airport, or whether it has been sent somewhere else entirely. What they cannot do is provide a continuous journey. During the flight, they almost always go silent, and that silence is completely normal.
3. WorldTracer
The third method only becomes relevant if something goes wrong. Once a bag is officially reported as missing, it is logged in WorldTracer, a global tracing system used by most airlines. At that point, you can track your bag using your PIR reference number, and see when it has been found and where it is.
How to stay on top of your bag from check-in to pick up
At check-in, keep your bag tag receipt somewhere safe, and take a quick photo of your suitcase. If you ever need to describe it later, that photo will become very important.
If you are using a tracker, open the app just before boarding and check the last known location. At this point you're simply looking to confirm that your bag is still somewhere in the airport system. The tracker will not tell you if it has been loaded onto the aircraft, but it will confirm that your luggage hasn't been left behind.
After landing, take a moment before heading to the carousel. If your airline offers baggage updates, check the app. British Airways passengers at Heathrow, for example, will often already know which carousel to go to. If you have a tracker, this is also the time to open it and see if your bag has appeared at your arrival airport.
At the carousel itself, bags usually start arriving within 15 to 30 minutes after landing. If the belt stops and your suitcase has not appeared, that is your signal to make a report.
Go directly to the airline's baggage desk in the arrivals hall. Bring your boarding pass, your bag tag, and any tracker information you have. The agent will create a Property Irregularity Report, which is what officially starts the airline's tracing process.
What to do once your bag is being traced
Once your report has been filed, you will be given a reference number that looks something like: LHRBA12345. Keep this — it is your access point into the system.
Enter that code at worldtracer.aero and you will be able to follow what's happening with your bag. You'll see when it has been located, where it is, and when it's scheduled for delivery.
It is worth knowing that WorldTracer is not a live tracking tool. Updates only appear when your bag is scanned, so it is completely normal for nothing to change for several hours at a time. Checking occasionally is enough.
At this stage, having an AirTag or a similar tracker becomes especially helpful. If you can see your bag's location and it differs from what the system shows, you can share that information with the airline. British Airways, for example, allows you to submit a live location link, which can help speed things up.
Why your bag's tracking sometimes seems to stop
One of the most common concerns passengers have is that tracking seems to freeze. But in most cases, this is simply how the system works.
During the flight, your bag is not being scanned at all, so the last update will remain at the departure airport until you land. At connecting airports, scans do happen, but they are not always shared between systems, so you may not see this info logged. Also, after landing, there can be a short delay before the arrival scan updates.
If you are using a tracker, the same principle applies. These tools depend on nearby devices to update their location, so they will often go quiet during the flight and only start updating again once back in a busy area like the airport.
In other words, a lack of updates doesn't always mean your bag is lost. It usually just means it is between scan points.
WorldTracer: How airlines actually find your bag
WorldTracer is used by over 500 airlines and around 2,800 airports worldwide. When you report your bag missing, the details are entered into this system and matched against bags that have been found elsewhere.
Using your PIR reference number, you can check your bag's status yourself. You will see when it has been located, where it is, and when it is expected to be delivered. This is the same information the airline sees, so there is rarely any need to call for updates.
All major UK airlines rely on WorldTracer, although the way they communicate with passengers varies slightly. British Airways integrates it into its own portal and accepts AirTag location links. easyJet and Wizz Air provide updates via email or SMS once a report is filed. TUI handles tracing locally at first, especially for holiday passengers, before escalating cases to its central team.
Once you understand how baggage tracking actually works, it becomes much easier to make sense of what you're seeing. It's not about following your bag in real time, but knowing where to check, when updates matter, and what steps to take if something doesn't look right. With the right approach, you're no longer guessing, but actively tracking what's happening at every stage of the journey.
FAQs
Only in a limited way. British Airways offers the most useful updates in the UK, but even then, it is not continuous tracking. For most airlines, you will only get updates at key points or after a problem is reported.
It is on the sticker attached to your boarding pass or ticket wallet at check-in. Keep it until you have your bag back.
It can, but not consistently. It relies on nearby devices, so it usually goes quiet during the flight and updates again after landing.
A Property Irregularity Report is the official record of your missing bag. Without it, your bag cannot be traced, delivered, or claimed for.
If your bag is not returned within 21 days, it is considered lost under the Montreal Convention. At that point, you can move from tracking to claiming compensation.