There’s no guaranteed payout for lost luggage. Your best protection is to report the problem before leaving the airport, keep every travel record, submit a separate written claim, and document the reasonable value of your loss.

The rule that controls your claim depends on the itinerary. A purely domestic U.S. flight, an international journey, and a qualifying European flight disruption can involve different rights and deadlines.

Which baggage rule applies?

Trip or problem Main rule or process What it generally controls
Purely domestic U.S. flight U.S. Department of Transportation rules and the airline’s contract Liability for covered domestic air service, claim procedures, and exclusions
International itinerary Montreal Convention, when it applies Compensation for baggage loss, damage, or delay and written-complaint deadlines
Qualifying EU flight disruption EU261 Certain fixed payments and care rights for cancellation, denied boarding, or qualifying flight delays

For covered U.S. domestic air service, 14 CFR Part 254 lists a maximum baggage liability of $4,700 per passenger. That is a ceiling, not an automatic payment. You still need to prove the actual loss, and the airline’s conditions may affect what it accepts.

For international carriage covered by the Montreal Convention, the current baggage limit is 1,519 Special Drawing Rights, or SDRs, per passenger. The dollar value changes with the SDR exchange rate. The limit covers baggage that is lost, damaged, or delayed, but it doesn’t mean every passenger receives the full amount. A higher limit may be available if you made a special declaration of interest and paid any required additional charge. An airline’s current liability notice, such as this official Air France notice, shows how the revised limit is presented to passengers.

EU261 is different. Its fixed flight-disruption payments are not a replacement for reimbursement of the contents of a lost suitcase. If both a qualifying flight delay and a baggage problem occurred, separate claims may be possible.

Ten lost baggage claim mistakes to avoid

1. Leaving the airport without a missing-bag report

Go to the airline’s baggage service desk before leaving the airport. Ask for a Property Irregularity Report, commonly called a PIR, or the airline’s equivalent missing-bag report.

Get the file or reference number, a copy of the report, and the name of the employee who helped you. Check that the report lists the correct baggage-tag number, flight, contact information, and delivery address.

A PIR usually begins the tracing process, but it may not be the airline’s formal compensation claim. If you’ve already left the airport, report the bag through the airline’s online process immediately and save the confirmation.

2. Assuming the PIR is your complete compensation claim

A baggage report helps the airline locate the suitcase. It doesn’t always ask for the value of the contents or the expenses caused by the delay.

Read the airline’s claim instructions and submit the financial claim separately if required. Explain whether the bag is delayed, damaged, or presumed lost. Ask the airline to confirm in writing that it received both the tracing report and the compensation claim.

If a codeshare flight was involved, identify the operating carrier shown on your baggage receipt and contact the ticketing airline as well. Keep copies of all submissions.

3. Treating the 21-day deadline as a universal rule

The 21-day rule is often repeated without context. Under the Montreal Convention:

These rules don’t create one universal deadline for every baggage problem. A purely domestic U.S. flight follows the airline’s contract and applicable domestic rules. Check the carrier’s conditions of carriage and claim instructions, then file as soon as possible rather than waiting for the last day.

4. Failing to prove what was in the bag

A general statement such as “the suitcase contained clothing and electronics” gives the claims examiner little to verify.

Prepare an itemized inventory with:

Airlines commonly assess the item’s age, condition, and actual value rather than simply paying the original retail price. Be accurate. Inflated or unsupported values can undermine the entire claim.

5. Claiming every purchase as a necessary expense

During a delay, buy what you reasonably need, not a new wardrobe or premium replacement for everything in the suitcase.

Keep dated, itemized receipts for basic clothing, toiletries, medication, or other necessary items. Add a short explanation showing why each expense was needed and how long the bag was missing.

Separate these temporary expenses from the value of the missing contents. If the bag is eventually delivered, that doesn’t automatically make the airline responsible for the full value of everything inside it. The airline will evaluate the delay expenses and the permanent loss separately.

6. Packing valuables and ignoring baggage exclusions

Cash, jewelry, irreplaceable documents, fragile items, and other high-value property can receive limited or excluded coverage when placed in checked baggage. The exact treatment depends on the airline’s contract and the governing law.

Keep passports, necessary medication, keys, cash, and irreplaceable items with you whenever the airline’s rules allow it. Check the carrier’s conditions before packing expensive electronics or other valuables. If you made a special declaration of interest, retain the declaration and proof of any additional payment.

7. Accepting the first offer without checking its basis

An airline’s first offer may omit some items, apply depreciation, exclude emergency purchases, or treat the payment as a final settlement.

Before accepting, ask for an itemized explanation:

Don’t sign a full settlement or cash a payment described as final until you understand what rights you’re giving up. If the airline’s deadline is approaching, ask in writing whether its review process preserves the rest of your claim.

8. Letting the airline and insurer wait for each other

Notify your travel insurer promptly, even if the airline is still tracing the bag. Many policies require timely notice, proof that you contacted the airline, or a copy of the airline’s decision.

You can often submit claims to both parties, but you must disclose any payment. Insurance may have a deductible, sublimits, exclusions, or primary-versus-secondary coverage rules. It generally won’t allow you to recover the same loss twice.

Keep the original receipts and send copies unless the insurer or airline specifically requests originals.

9. Relying only on an app or tracking number

An airline tracker can show movement, but a status update isn’t a financial claim and doesn’t prove that the airline received your receipts.

Check the tracking status, save screenshots, and follow up through a written channel using the file number. Keep a simple log of calls, emails, promised callbacks, delivery arrangements, and expenses. Written records are especially useful if the status later changes to “delivered” when you still don’t have the bag.

10. Escalating before building a clear record

A regulator or court will have more useful information if you can show that you reported the bag, submitted the required documents, and asked the airline for a written explanation.

Start with the baggage office and claims department. If the response is incomplete, send a concise reconsideration request identifying the missing item, receipt, or calculation. Ask the airline to quote the specific condition of carriage supporting a denial.

For a U.S. airline or a flight involving the United States, you can review the U.S. DOT’s baggage guidance and submit a consumer complaint when appropriate. A DOT complaint may help document a pattern or prompt a response, but it doesn’t automatically award private compensation.

For a substantial international claim, don’t let an airline complaint process cause you to overlook the Montreal Convention’s two-year court deadline.

What to include in a baggage claim

Send a neat claim package rather than a collection of disconnected screenshots. Include copies of:

A short cover note should state the flight date, baggage number, date the problem was reported, date the bag was returned or confirmed missing, and total amount requested. Divide the amount into delayed-bag expenses, permanent contents loss, bag value, damage, and any applicable baggage-fee refund.

Don’t send more personal information than necessary. Redact unrelated account numbers and keep the original documents.

How compensation is usually evaluated

The legal limit is not a guaranteed valuation. An airline normally looks at the proven, reasonable loss and then applies the relevant liability cap and contract terms.

For a delayed bag, the claim may focus on necessary expenses incurred while waiting and any applicable baggage-fee refund. For a bag that is permanently lost, the claim generally focuses on the depreciated or actual value of the suitcase and contents. For damage, the airline may consider repair cost, replacement value, age, and whether the damage was caused during carriage.

For U.S. domestic travel, ask about the applicable $4,700 liability ceiling. For an international claim governed by Montreal, use the 1,519-SDR ceiling and remember that the conversion to U.S. dollars changes.

A refund of a checked-bag fee is separate from the value of the contents. For U.S. travel, review the DOT’s rules and guidance before combining these requests.

A practical filing timeline

At the airport: Search the carousel and nearby service area, then report the missing bag before leaving. Record the PIR number and delivery address.

Within the first day: Save the baggage-tag information, photograph the report, start an inventory, and ask the airline how it handles necessary purchases.

While the bag is delayed: Buy only reasonable essentials, retain receipts, check the airline’s tracker, and keep written follow-up notes.

When the bag arrives: Inspect it promptly. Photograph damage before using or repairing it and submit any written damage complaint within the applicable deadline.

After 21 days on an international itinerary: If the bag still hasn’t arrived, ask the airline to process it as lost and submit the permanent-loss claim. Don’t assume the tracing file has replaced the financial claim.

If the airline denies or underpays: Request the calculation and the exact contract provision, then seek reconsideration, notify your insurer, and consider the appropriate regulator or professional advice.

Frequently asked questions

Is a PIR required to receive compensation?

Not necessarily in every legal system, but it is strong evidence that you reported the problem and gives the airline a traceable case. Without it, proving when and where the bag went missing can be harder. If you skipped the airport desk, file the airline’s online report immediately.

Is a bag automatically lost after 21 days?

For an international claim governed by the Montreal Convention, a bag that hasn’t arrived within 21 days after it should have arrived may be treated as lost for enforcement purposes. The airline may acknowledge loss sooner. Start the claim before the 21-day point and follow the carrier’s instructions.

Does EU261 pay for the contents of a lost suitcase?

EU261 generally addresses qualifying flight cancellations, denied boarding, and delays. It doesn’t replace the separate baggage claim used to seek the proven value of lost or delayed contents.

Can I claim from both the airline and travel insurance?

Notify both when required by their procedures, but disclose payments and don’t recover the same expense twice. Check the policy for deductibles, exclusions, deadlines, and whether coverage is primary or secondary.

Will the airline pay the full domestic baggage limit?

No. The $4,700 U.S. domestic limit is a maximum liability amount for covered service, not an automatic payment. You’ll still need evidence of the actual loss, and exclusions or valuation rules may reduce the amount.

What should I do if the airline gives no reason for denying my claim?

Ask for a written decision that identifies each rejected item, the amount allowed, and the specific contract provision or rule used. Attach any missing receipts or proof, request reconsideration, and keep the response for an insurance or regulatory complaint.