Start with the record, not the dollar figure. A strong lost-bag claim shows that you checked the bag, the carrier accepted it, it failed to arrive, you reported the problem, and the amount requested reflects a real loss.
Your bag tag and tracking screen help establish part of that story. They do not prove the value of everything inside.
Report the missing bag before leaving the airport if you can. Get the report number, keep the bag receipt and boarding pass, and file a separate written claim if the airline requires one.
The rules below are written for U.S. consumers. An international itinerary may be governed by different rules.
Start with the rule that applies
Route matters more than the airline logo. Domestic and international trips can fall under different liability rules, especially when the itinerary is on one ticket.
| Issue | U.S. domestic travel | International travel |
|---|---|---|
| Main framework | DOT baggage rules and the airline's contract of carriage | Often the Montreal Convention, plus the carrier's conditions |
| Maximum liability | Generally up to $4,700 per passenger, subject to exclusions and conditions | Often 1,519 SDR per passenger under Montreal Convention rules; the dollar value changes |
| Delay complaint | Follow the airline's stated deadline and report immediately | A written delay complaint generally must be made within 21 days after the bag is made available |
| Checked-bag fee | Eligible lost or significantly delayed bags may qualify for a fee refund | The same federal fee-refund rule can apply to covered carriage |
| Value of contents | Supported actual loss, subject to the applicable limit | Supported actual loss, subject to the treaty limit and exclusions |
These figures are ceilings, not automatic payments. The carrier can still question whether an item was packed, what it was worth, or whether an exclusion applies.
Read DOT's baggage guidance alongside the airline's contract of carriage. The checked-bag fee rule in 14 CFR 260.5 is separate from reimbursement for clothes, toiletries, or other contents.
If the federal fee-refund rule applies, the refund must be at least the fee paid to transport that checked bag. The rule has exceptions, including failing to retrieve and recheck a bag at the first U.S. international entry point when Customs and Border Protection requires it, or voluntarily agreeing to travel without the bag on that flight.
EC 261 usually isn't the main rule for the value of an ordinary lost-baggage claim. It mainly addresses flight disruption. Baggage claims generally use the Montreal Convention or applicable domestic rules. IATA material may describe industry practice, but it does not replace the law or your contract.
What you need to prove
Treat the claim as a chain of links. Your records should connect the bag to the flight, the disappearance to the airline's custody, and the amount requested to an actual item or expense.
| Fact to establish | Useful proof | Limitation |
|---|---|---|
| The airline accepted the bag | Baggage receipt, tag number, boarding pass, itinerary, check-in record | These records do not show the contents' value |
| The bag did not arrive | Property Irregularity Report, mishandled baggage report, tracking history, airline emails | A missing-bag report does not prove what was packed |
| The contents had value | Itemized inventory, receipts, order confirmations, card statements, pre-trip photos | A receipt alone does not prove the item was inside |
| You incurred delay expenses | Dated, itemized receipts and proof of payment | Expenses must be reasonable and connected to the delay |
| You acted on time | Portal confirmation, email timestamps, call notes, submitted forms | A phone call without a record is harder to verify |
A Property Irregularity Report is usually called a PIR. U.S. rules may also refer to a mishandled baggage report, or MBR. The report starts the tracing process; it is not an admission of liability and does not value your property.
Before leaving the airport
Do these steps while the details are fresh.
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Report the problem at the baggage service desk. Ask the agent to create the PIR or equivalent report. If the desk is closed, use the airline's official app or website, call the carrier, and write down the time and case number.
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Check every number before you leave. Compare the bag tag, flight number, destination, name spelling, and delivery address. One small error can slow the trace.
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Ask how the money claim works. Find out whether the airline wants a separate form, receipts, an inventory, or a written complaint. Ask for the instructions in writing when possible.
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Save the report and tracking record. Photograph the report, copy the reference number, and screenshot the airline's status page. Keep the original documents too.
The search period can affect whether the carrier treats the bag as delayed or lost. It should not postpone your evidence gathering.
Build an evidence folder
Turns out, the dull records usually do the heavy lifting. Put everything in one folder and give files dated names.
- [ ] Boarding pass, e-ticket, and itinerary
- [ ] Baggage receipt or tag number
- [ ] PIR, MBR, or online report confirmation
- [ ] Bag description, including brand, size, color, and distinctive marks
- [ ] Itemized contents list with age, purchase date, and estimated value
- [ ] Receipts for necessary purchases during the delay
- [ ] Airline emails, chat transcripts, call notes, and denial letters
Give important items their own line. Add the make or model, approximate age, original price, and current value when you can support those details.
Without a receipt, use an order history, warranty record, card statement, photograph, or comparable used-item price. Call an amount an estimate when that's what it is. Honest estimates are stronger than round numbers with no explanation.
A missing physical tag doesn't automatically end the claim. Send the booking record, route, bag description, check-in details, and any app record, then ask the airline to search its baggage-scan history.
What photos and tracking can actually show
Photos answer narrow questions. A pre-trip image can support the bag's appearance and may show some contents; a tag photo can support the number attached to the bag. Neither proves that every claimed item was inside.
Thing is, an RFID or app screenshot is a timeline, not irrefutable proof. Save the status, date, time, and reference number. If the airline's explanation conflicts with the screen, ask it to confirm the underlying scan history.
A mismatch between the baggage receipt and the airline's record deserves a written explanation. Save the mismatch, describe it precisely, and ask what caused it. Don't treat the difference alone as automatic proof of fault.
A witness can confirm what an agent said or what happened at the desk. CCTV might help as well, but retention and access vary, so make a prompt written request instead of relying on footage you haven't obtained.
File a claim that can be calculated
Keep the checked-bag fee in its own line. A fee refund is different from reimbursement for delay purchases or property that never came back.
| Claim category | Attach | How to present it |
|---|---|---|
| Checked-bag fee | Baggage receipt or booking record | Identify the fee separately |
| Necessary delay purchases | Itemized receipts and proof of payment | Say what you bought and why it was needed |
| Bag and contents | Inventory, receipts, photos, and valuation support | Explain age, condition, and any estimate |
| Amounts already recovered | Airline, card, or insurance statements | Show the remaining balance and prevent duplicate recovery |
DOT guidance uses a reasonable and verifiable expense standard for delayed-bag purchases. Don't assume an internet figure such as $50 per day applies to every U.S. flight. Keep each receipt and explain why the purchase was tied to the delay.
Send the claim through the airline's official portal or claims address. Keep the confirmation page. Never send your only original document.
A short, itemized letter gives the carrier something concrete to review:
Subject: Written mishandled baggage claim - [PIR or MBR number]
Passenger: [Full name]
Flight and date: [Flight number and date]
Route: [Origin and destination]
Bag tag: [Tag number]I reported the missing bag at [airport] on [date]. The report number is [number].
The bag was described as [description]. It has [not arrived / arrived on date].Requested amounts: Checked-bag fee refund: $[amount]
Necessary delay expenses: $[amount]
Bag and contents: $[amount]
Total requested: $[amount]Attached are the report, travel records, inventory, receipts, tracking records, and prior correspondence. Please confirm receipt and identify any missing document or specific contract provision supporting a denial.
Name:
Address:
Email and phone:
Deadlines that can sink a valid claim
Track more than one clock. Use the earlier deadline if the airline's contract, ticket terms, or applicable law gives you more than one date.
| Situation | Practical deadline |
|---|---|
| Missing bag at arrival | Report it immediately, preferably before leaving the airport |
| U.S. domestic claim | Follow the carrier's published deadline and submit as soon as possible |
| International delayed baggage | Written complaint generally within 21 days after the bag is placed at your disposal |
| International damaged baggage | Written complaint generally within 7 days after receiving the bag |
| International bag still missing | If it remains missing 21 days after it should have arrived, it may be treated as lost under Montreal Convention rules |
| Court action under Montreal Convention | Generally within two years; verify the date before relying on it |
No single four-hour or 24-hour reporting deadline covers every U.S. flight. Some carriers set shorter reporting requirements, so check the contract instead of relying on a general internet checklist.
A PIR filed at the airport may not satisfy a later written compensation claim. Keep the airport report, then submit the formal claim separately if the carrier requires it.
Don't assume a complaint to the Department of Transportation pauses a court or treaty deadline. The DOT's lost, delayed, or damaged baggage guidance can help with the regulatory route, but it does not replace the airline claim.
If the airline denies the claim
Read the exact reason first. A longer response won't help if it misses the point of the denial.
| Denial reason | Useful response |
|---|---|
| No record that the bag was checked | Send the tag, baggage receipt, and boarding pass; ask for scan records |
| No proof of the contents | Add an inventory, purchase history, photos, warranty records, or card statement |
| Claim was late | Send the submission timestamp and identify the deadline you followed |
| Item was excluded | Ask for the exact contract or tariff provision and remove unsupported items |
| Airline says the bag was delivered | Request delivery details, scan history, and the record used to close the trace |
| Amount is too high | Recalculate by line item and explain age, condition, and any estimate |
Appeal in writing and answer each denial point separately. A fresh, organized schedule is more useful than forwarding the same email again.
If the carrier won't correct a possible regulatory violation, submit a consumer complaint through the DOT information linked above. A DOT complaint can create a regulatory record and prompt a response, but it is not a private damages decision and doesn't guarantee payment.
For a large claim or a deadline that is close, qualified legal advice may be worth considering before filing in court. The relevant procedure and deadline depend on the route, ticket, carrier, and governing law.
Credit card coverage is a separate claim
Baggage protection attached to a credit card or travel insurance policy is a separate contract. The benefit may require payment of the fare with that card, may be secondary to airline recovery, and may impose its own notice deadlines and limits.
To be honest, the card's benefit guide matters more than its marketing summary. Send the insurer the airline report, receipts, inventory, and written claim. Disclose any amount the airline pays.
A benefit claim is not the same as a chargeback. A chargeback addresses a payment problem; it isn't a general way to force reimbursement for property lost by an airline.
Put the file in order today
Start with the baggage receipt or its best substitute. Add the PIR number, the itemized money trail, and every submission confirmation.
Submit the written claim now, calendar the next deadline, and save the airline's response with the rest of the file. That file is what a later appeal will need.