Frequent travelers know the feeling well. You’ve been standing at the baggage carousel for too long, watching the same three suitcases make their repeat laps, and the spiral begins: Did my bag make the connecting flight? Did someone else grab it? Is my luggage…missing?
I have, miraculously, never had a checked bag fully vanish, though I have had enough delayed-bag anxiety to know how quickly a calm arrival can turn into a paperwork hunt.
The key is not to wait and hope. Here’s what to know when your luggage is seemingly lost, including what you can expect from the process of filing a claim for reimbursement.
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File the Report Before You Leave the Airport
As soon as that baggage carousel stops turning, head straight to the airline’s baggage service desk, app, or online delayed-bag form, not the taxi line.
The U.S. Department of Transportation (DOT) says passengers should file a baggage claim with the airline as soon as possible and stay in close communication while the airline tries to locate the bag. Many airlines also have bag-tracking systems or apps that can help show where the bag was last scanned.
It’s generally a good idea to file a claim before exiting the airport, and some airlines have specific reporting requirements.
American Airlines, for example, says passengers should report delayed bags before leaving the airport and the airline then gives travelers a 13-character file ID to check bag status and submit claims.
Before you walk away, get a claim number or file reference, confirm the delivery address, and take photos of your bag tag, boarding pass, and any paperwork.
Buy What You Need, Then Save Every Receipt
Yes, airlines will foot the bill for replacement items if your lost or delayed luggage leaves you in a lurch.
Under DOT rules, airlines must compensate passengers for reasonable, verifiable, and actual incidental expenses incurred while bags are delayed, subject to liability limits. Airlines also cannot create an arbitrary daily cap. DOT specifically says an airline cannot simply say it will reimburse only $50 per day for delayed-bag expenses. There’s no widely available mandatory timeline for reimbursement claim processing and many airlines don’t publicize their guidelines, but don’t expect it to be instantaneous: for example, Alaska Airlines’ policy states that baggage claims are generally settled in a 4-6 week time frame from the date of travel.
But remember when I said “reasonable”? If your bag is delayed on the way to a beach weekend, for instance, toiletries, underwear, sunscreen, a swimsuit, and a change of clothes are easy to justify. A full new vacation wardrobe or a designer swimsuit that costs several hundred dollars is going to be a harder sell.
Keep every itemized receipt and submit expenses through the airline’s process, which will vary among carriers, though many have online portals for submitting and tracking reimbursement claims.
Delta’s reimbursement policy, for instance, says travelers should save the file reference number (an eight or 10-digit alphanumeric code given to you by the Delta representative when reporting a delayed bag) and delayed baggage report from the Delta Baggage Service Office, then submit an “Out-of-Pocket Expense Claim” (with receipts) for reasonable expenses caused by the bag delay.
Keep Following Up Until the Bag Is Found or Officially Declared Lost
A missing bag is usually treated as “delayed” before it is officially “lost,” which is annoying, but important.
DOT says most airlines declare a bag lost between five and 14 days after a flight, though the exact timeline varies by airline, itinerary, and circumstances (for Delta, it’s after 21 days).
Check the airline’s bag-tracking portal daily and keep a log of every call, chat, and email. Ask specific questions: Where was the bag last scanned? What search step happens next? When will the airline consider it lost?
If your bag has been missing for several days, check the airline’s next-step instructions. Many carriers use the five-day mark to request more detailed information, escalate the file to a central baggage team, or open a more formal claim.
Southwest says travelers can submit a lost baggage claim through its baggage portal if the bag is not located after five days, and Air Canada says travelers need to fill out a declaration form with its central baggage office if delayed baggage cannot be located within five days.
Once the airline determines the bag is indeed lost, it must compensate you for the bag’s contents, subject to depreciation and maximum liability limits, and refund any baggage fees paid for that lost bag.
Know What You’re Owed in the U.S. vs. Abroad
For domestic United States flights, DOT allows airlines to limit liability for a lost, damaged, or delayed bag, but the current maximum is $4,700 per passenger.
For most international flights, the Montreal Convention applies; as of December 2024, the current baggage liability limit set by the International Civil Aviation Organization (ICAO) was 1,519 Special Drawing Rights (an international reserve asset created by the International Monetary Fund), or about $2,175, per passenger.
The baggage-fee refund rules are separate but useful. DOT says a checked-bag fee must be refunded if a paid checked bag is declared lost or significantly delayed. “Significantly delayed” means not delivered within 12 hours after arrival on domestic flights; for flights between a U.S. airport and a foreign airport, it means 15 hours for flights 12 hours or less, and 30 hours for longer flights.
Abroad, deadlines can be stricter. The EU’s Your Europe guidance says claims for lost or damaged luggage should be made in writing within seven days, or within 21 days of receiving delayed luggage.
Protect Yourself Before You Check a Bag
Of course, the cleanest outcome is never having to make a lost-luggage claim in the first place.
The airline is responsible for getting your checked bag back to you, but you can make the process less painful before you hand it over: take photos of the suitcase from a few angles, including the brand, color, size, tags, and any distinctive scuffs. Then snap a quick photo of what’s inside. It is much easier to show an agent a picture than try to describe your “medium-ish black roller bag” while everyone else at the counter is doing the same. And perhaps the most obvious: keep a nametag with contact information on your suitcase, which can help identify your bag more quickly in the event it goes on an unexpected journey without you.
Also, keep valuables, medicine, passports, keys, fragile items, and anything irreplaceable in your carry-on. DOT specifically recommends keeping critical and high-value items out of checked luggage when possible.
Finally, set up your luggage tracker. Some airline tools let you monitor checked bags; American Airlines and Delta both allow travelers to share an AirTag or Find My accessory link when filing a delayed-bag report.
It is also worth checking your travel insurance or credit card benefits before departure. NAIC notes that baggage loss/delay or personal effects insurance is usually secondary coverage and can help cover gaps after airline, homeowners, or credit card coverage. Some credit cards also include baggage-delay reimbursement for essential purchases (and may provide reimbursements quicker than airlines), though you usually need to file with the carrier first.
The Shortcut
File a delayed-bag report before leaving the airport, get the file reference number, and keep your bag tag and boarding pass handy.
Buy reasonable essentials, save itemized receipts, and submit them through the airline’s claim process as soon as possible.
Know the limits: U.S. domestic baggage liability is capped at $4,700 per passenger, while most international flights fall under the Montreal Convention’s 1,519 Special Drawing Rights limit, about $2,175 USD.
You also have rights if your flight is significantly delayed. Spoiler: Don't accept the first offer.
