Lost checked bag? Here's how to get it back and get paid

The carousel slows, the last suitcases get claimed, and yours never appears. A lost checked bag is one of the few travel problems where the outcome depends more on paperwork than on luck. What you do in the first hour matters more than anything you do in the following week. Airlines run formal, deadline-driven systems for mishandled luggage, built around reference numbers, liability caps, and filing windows that expire without warning. Most travelers never look at any of it until they are standing at an empty belt.

Sort out which problem you have. A bag that missed a connection or got misrouted is usually still in the system and still being traced. It often reaches you within a day or two. A bag the airline eventually declares lost is a different category, and that switch happens only after a waiting period that varies by carrier. The two situations call for different requests, different documents, and different kinds of compensation.

Where you flew matters just as much. International itineraries between countries bound by the Montreal Convention carry a legal liability limit per passenger. They also come with strict deadlines for filing damage and delay claims. Flights inside the U.S. fall under Department of Transportation rules instead, with a separate cap and its own complaint channel. Mixed itineraries can land in either framework depending on which segment went wrong, so ask the airline which one applies before you file.

There is a second layer of coverage many travelers forget. Baggage delay protection built into travel insurance policies and premium credit cards pays out separately, and it usually runs its own filing clock alongside the airline's.

The 10 steps below cover the report you file before leaving the terminal and the documents worth keeping. They also explain how reimbursement for toiletries and clothing works, when to bring in a regulator, and what belongs in your carry-on so the next missing suitcase costs you less.

Illustration: Quartz

Report the missing bag at the airline's baggage service office inside the airport, before you pass through customs or step outside. That visit creates the official record — usually a Property Irregularity Report, or PIR — with a reference number every later claim is built on.

Do it even if the desk line is long and the flight was overnight. Leave without a report and you give up the cleanest proof that the bag never arrived with you. Airlines can treat a next-day phone call as a weaker account, harder to verify against their own records. Keep your boarding pass and baggage claim tags in a pocket or on your phone, because the agent will ask for both.

Leave the desk with a copy of the report, printed or emailed, plus the reference number and a direct way to check status. Ask whether the carrier traces bags through WorldTracer, the system most major international airlines and their partners use to match misrouted luggage against reports filed at other airports. A suitcase that boarded a later flight often surfaces there before anyone calls you.

Describe the bag in detail. Brand, color, hard or soft shell, size, and anything odd about it — a frayed strap, a conference sticker, a cracked wheel — help a warehouse worker separate yours from hundreds of similar black rollers. If you photographed it before check-in, email the image so it attaches to the file.

Ask what the airline's delayed baggage policy covers in the meantime. Some carriers hand out a toiletry kit or authorize a fixed daily allowance on the spot. Others reimburse against receipts afterward, up to a stated cap. Get the answer in writing where you can, and otherwise note the agent's name, the desk location, and the time of the conversation.

Confirm the delivery address before you go. Airlines will courier a recovered bag to a hotel or home address at no charge, but an outdated address on the report sends it to the wrong city. Update it with the airline if your itinerary changes mid-trip.

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Hold on to the baggage claim tag stub and your boarding pass until the case is closed and any money owed has reached your account. Those two documents prove you checked a bag on a specific flight and that it never reached the carousel.

The stub carries a 10-digit license plate number assigned to your bag at check-in. Agents and tracing systems use that number to search for it across the carrier's network and its partner airlines. It is the most useful thing you can hand over at a baggage service desk. If the stub disappears, the same number often appears on the receipt stuck to your boarding pass folder at check-in.

Photograph both documents with your phone right after check-in, as a routine habit rather than a reaction to trouble. Capture the whole tag, including the barcode and the flight number printed on it. It takes seconds, and it spares you from digging through pockets at a crowded carousel while an agent waits.

These documents keep mattering long after the initial report. If a claim is denied, stalls, or moves to a travel insurer, the first thing anyone asks for is a copy of the tag and the boarding pass. Photos and scans are usually accepted, but keep the originals until the file is settled.

Travelers $TRV who booked through an online agency or a corporate travel desk should also keep the full itinerary and booking reference. Baggage agents sometimes need to match a third-party reservation against the airline's own records, and a slow lookup delays the search.

Store copies somewhere that survives a dead battery or a stolen phone. Email them to yourself, save them to cloud storage, or forward them to whoever you are traveling with. A second set of records costs nothing and keeps the paperwork from vanishing with a single device.

Illustration: Quartz

A delayed bag is one the airline is still tracing and expects to hand back to you. A lost bag is a formal designation, applied only after a set number of days pass with no resolution — commonly between five and 21, depending on the carrier and the route. Which category applies determines what you can ask for.

During the delayed phase, the airline owes you a search and delivery to your home, hotel, or next address, at its own expense. Most missing bags land in this category and turn up within one to three days. The usual cause is a missed connection or a load onto a later flight. Compensation at this point covers interim expenses, not the value of the suitcase or its contents.

The process changes character once the carrier's clock runs out and the bag is declared lost. You stop waiting on a delivery and open a valuation claim for the bag and everything inside it. That often means a different form, a different department, and a separate set of deadlines.

Ask the baggage service agent, at the moment you file, how many days your airline waits before declaring a bag lost. No industry-wide number exists. Carriers often apply a longer window to international itineraries, where a bag can pass through several handlers before anyone gives up on it. What one airline told you on an earlier trip has no bearing on this case. Write the date on your calendar so you know the exact day you become eligible to escalate.

Silence is not progress. Check the online tracker against your reference number daily, and call the baggage department if the status has not moved in 48 hours. Bags sit at airports for days because no one updated a record, and a direct call can restart a stalled trace.

Keep a short log of every contact — the date, the time, the agent's name, and what you were told. If the case crosses into a formal loss claim, that record becomes the backbone of your file.

Illustration: Quartz

Airlines generally reimburse reasonable costs for basic necessities while a checked bag is missing. That covers toothpaste, a change of clothes, a replacement charger and over-the-counter medication. Nearly every carrier pays only against itemized receipts, so estimating from memory afterward rarely works. Reimbursement for a delay covers replacement items you need in the meantime, not the value of what is inside the bag.

The word carrying the weight in every delayed baggage policy is "reasonable," and carriers define it on their own terms. A toothbrush, deodorant, underwear and a shirt for a work meeting sit inside that definition. A replacement wardrobe from a designer boutique does not. Padding a claim with charges like that can slow the review of everything else you filed.

Two reimbursement models exist, and they are not interchangeable. Some carriers pay a fixed daily allowance for each day the bag is missing, with little documentation required. Others cover only what you actually spent, up to a stated ceiling, once you submit receipts. Ask which applies before spending anything substantial. Buying against the wrong assumption gets expensive.

Photograph each receipt as soon as you get it. Thermal paper from pharmacies and convenience shops fades, sometimes within weeks, and a blank slip proves nothing. Keep a short running note with the date, the item, the price and the shop name. That gives you a second record if an image goes missing.

Currency matters abroad. Hold on to the receipt in the local currency and note the conversion rate you were charged. Airlines typically reimburse in their own billing currency, and you want the arithmetic to be traceable.

File the expense claim while the trip is still in progress rather than after you unpack at home. Reimbursement windows close. The link between a given receipt and a given purchase blurs once the stress fades. Filing early also leaves time to correct a rejected line item before the deadline.

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The Montreal Convention caps airline liability for lost, damaged, or delayed checked baggage on international flights at 1,288 Special Drawing Rights per passenger. That comes to roughly $1,700 to $1,800, depending on the exchange rate. The ceiling holds no matter what your suitcase and its contents were actually worth.

Special Drawing Rights are a unit of account maintained by the International Monetary Fund. The dollar equivalent shifts with currency markets, so check the current conversion on the day you file. Do not rely on a figure you read a year ago. The limit binds carriers on itineraries between countries that are parties to the treaty, which covers most of the world's significant aviation markets.

Treat the cap as a maximum, not a payout. Airlines ask for an itemized account of what was inside the bag and evidence of value. They apply depreciation to used goods. A jacket or laptop bought several years ago is valued at what it is worth now, not the price on the original receipt. Bank statements, order confirmations, and photographs of the contents strengthen a valuation. A list written from memory invites a reduced offer.

Flights entirely within the U.S. sit outside this framework. Department of Transportation rules govern domestic baggage liability instead, under a separate cap the DOT raises periodically to track inflation. Itineraries that pair a transatlantic leg with a domestic connection can fall under either regime. Which one applies may hinge on where in the journey the bag went astray. Ask the airline to state in writing which framework it is using for your claim.

Several categories of property are excluded from checked baggage liability altogether, among them cash, jewelry, consumer electronics, and fragile goods. Each carrier spells out its own list in its contract of carriage, the legal document published on its website. Read that list before you itemize a claim. Losses in an excluded category will not count toward the convention limit. Including them can also slow the review of the items that do qualify.

Illustration: Quartz

A written claim is the step that converts a missing bag into a payable compensation case, and missing the filing window can end your right to recover anything. On international itineraries governed by the Montreal Convention, the deadline runs seven days from receipt of the bag for damage and 21 days for delay. An airline's contract of carriage can allow longer, never shorter.

Find the baggage claim clause in that contract of carriage before you write a word. Carriers phrase the terms differently, and the clock on a delay claim starts from a different date than the clock on a damage claim. Deadlines you remember from an earlier trip on another airline do not carry over.

Build the claim around the Property Irregularity Report number issued at the airport. Add your flight numbers and travel dates, the ticket or record locator, and a description of the suitcase. Then list the contents item by item with an approximate value for each. Attach scans of the baggage claim tag and boarding pass.

Address the claim to the airline that issued your ticket, and name the operating carrier if a partner flew the leg where the bag went astray. On a multi-airline itinerary, responsibility can sit with either one, and naming both keeps the file from bouncing between them.

Send it through the airline's official claims portal or by email so a timestamped record exists. A phone call leaves no trail, and agents rarely open a formal claim on a caller's behalf. Save the confirmation page or sent message along with copies of every attachment.

Itemize instead of asking for a lump sum. A claim that lists specific garments, chargers, or equipment with purchase dates gives the adjudicator something concrete to check, while a round figure gives them nothing to verify. Purchase records for the higher-value contents give the file more weight.

If no acknowledgment arrives within one to two weeks, write again and cite your original submission date. Log every call, agent name, and case number in a single document. Regulators and insurers both ask for that record when a claim stalls.

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Travel insurance policies and premium travel credit cards frequently include baggage delay and baggage loss protection that pays out separately from whatever the airline gives you. Check both before you assume the carrier is your only option for getting money back.

Card coverage usually comes with an activation condition. You generally need to have paid for the flight, or a meaningful portion of the trip, with that specific card. The benefits guide attached to your account spells out the terms. The number on the back of the card connects you to the benefits administrator, who can confirm what applies to your situation.

Ask two questions in particular: the per-passenger dollar cap and the waiting period. Many baggage delay benefits activate only once the delay passes a set threshold, commonly six or 12 hours from your arrival time. A bag that turns up the same evening may fall outside coverage entirely.

Standalone travel insurance bought for the trip often carries higher limits than a card benefit, and it typically covers permanent loss as well as delay. Read the baggage section of the policy document for exclusions, which tend to mirror the airline's. Cash, jewelry, and some electronics are frequently capped or left out.

You cannot collect twice for the same toothbrush. Insurers and card issuers almost always treat their coverage as secondary. They want proof of what the airline already paid, or a written declination, before they process anything. Keep the airline's correspondence, your file reference number, and every receipt in one folder, since the same documents get submitted more than once.

Watch the clocks, because they run on different schedules. Card and insurance claim windows can be as short as 20 or 30 days from the date of the incident. That deadline may close well before the airline finishes its own review. Open both claims in parallel rather than waiting for one to resolve first.

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A Bluetooth tracker such as an Apple $AAPL AirTag, a Tile, or a Chipolo tucked inside your suitcase gives you a location reading that does not depend on the airline's own scan data. If your bag already has one when it goes missing, open the app before you reach the baggage service desk.

That reading is often more useful than what the agent can see on screen. Carrier systems log a bag at scan points — check-in, loading, transfer, arrival — so they show where a suitcase last was, not where it is now. A tracker can tell you the bag is sitting at the airport you connected through, or in a warehouse across town, or already loaded on a delivery truck. A specific location turns a broad trace into a targeted one.

Report what you see plainly. Give the city, the facility if you can name it, and the time of the last ping. Some agents act on that immediately. Others are limited by rules about who may retrieve luggage from a secure or customs-controlled area. The detail still goes into the file either way.

Lithium coin-cell batteries of the kind AirTags use are generally permitted in checked luggage under Federal Aviation Administration guidance, though individual carriers set their own policies and those change from time to time. Check your airline's current rules rather than assuming.

Airline apps add a second layer of visibility. Many carriers now show baggage scan updates alongside your boarding pass, including when a bag was loaded and whether it made a tight connection. Switch on push notifications and you may learn about a routing problem while you are still in the air, which gives you a head start at the destination.

Share tracker access with whoever you are traveling with. If your phone dies in a customs line, or you land without a roaming signal, a companion can pull up the bag's last known position and pass it to the airline on your behalf.

Illustration: Quartz

If an airline denies your baggage claim or stops responding, file a complaint with the U.S. Department of Transportation's Aviation Consumer Protection Division. The process is free, runs through an online portal, and requires no lawyer. It covers flights within, to, and from the U.S., including those flown by foreign carriers on U.S. routes.

The form asks for your flight details, the airline's response or lack of one, and the documentation behind your original claim. Airlines are required to respond to complaints the DOT forwards to them, which on its own often moves a stalled file. The agency does not guarantee a payout in any individual case, though complaint volume feeds its monitoring of carrier compliance with federal baggage rules.

Exhaust the airline's own claims process first. Regulators expect the carrier to have had a fair chance to settle directly, and a complaint filed before the airline's stated review window closes will likely be sent back. Confirm you filed within the airline's deadline and keep proof of that filing. A missed window weakens your position no matter who reviews it.

Keep the complaint factual. List dates, the Property Irregularity Report number, the claim reference, the amounts requested, and the date of each communication. Attach copies rather than summaries. A complaint reviewer is matching your timeline against the airline's, and anything that is not a date, a number, or a document adds little to that comparison.

For itineraries with no U.S. touchpoint, look for the national equivalent in the country where the flight departed or landed. The U.K. Civil Aviation Authority handles air passenger complaints in Britain, and most large aviation markets maintain a comparable consumer body with a similar submission process.

Small claims court is the final option when the sum is significant and the airline will not move. Filing fees are modest, the process is built for people without legal representation, and a court summons sometimes produces a settlement that months of correspondence did not. A consumer rights attorney is worth consulting for larger or more complicated losses.