How to File an Aviation ADR Complaint for Lost Luggage in the UK

PeakWanderer Editorial · Updated 2026

When you travel, your luggage is often just as important as your ticket. In fact, according to the 2022 SITA Baggage IT Insights report, around 5.57 bags per 1,000 passengers were mishandled in 2021, leading to significant claims for compensation. If your luggage has been lost during a flight from or within the UK, you may be protected under the Montreal Convention and EU Regulation 261/2004. This article will guide you through the process of filing an Aviation Alternative Dispute Resolution (ADR) complaint, ensuring you know your rights and how to enforce them effectively.

What Rights Do I Have When My Luggage Is Lost? (Montreal Convention)

Under the Montreal Convention, passengers are entitled to compensation for lost luggage. If your checked baggage is delayed, damaged, or lost, you can claim up to €1,600 (approximately £1,400) for luggage loss or damage. The time limit to file your claim is typically seven days from the date you receive your baggage. If your luggage is delayed, you have 21 days to submit your claim. It’s essential to keep all receipts and documentation related to your travel and luggage for your claim to be valid.

Situation Deadline Max Claim Action
Delayed luggage 21 days €1,600 (£1,400) Contact airline directly
Lost luggage 7 days €1,600 (£1,400) File a complaint with ADR
Damaged luggage 7 days €1,600 (£1,400) Submit a claim with evidence
Compensation for interim expenses As incurred No fixed limit Keep all receipts
Extra costs incurred As incurred Varies Submit receipts with claim

How Do I File a Complaint for Lost Luggage? (Step-by-Step)

Filing a complaint for lost luggage can be straightforward if you follow these steps:

  1. Report the loss: Immediately notify the airline’s baggage service desk at the airport. Fill out a Property Irregularity Report (PIR).
  2. Get a reference number: Ensure you receive a reference number for your claim.
  3. Document everything: Keep all travel documents, boarding passes, and receipts for any necessary purchases.
  4. Submit your claim: Contact the airline’s customer service through email or their website. Provide all necessary documentation and details of your claim.
  5. Follow up: If you don’t receive a prompt response, follow up within a week to ensure your complaint is being processed.

What Are My Options if the Airline Doesn't Resolve My Claim? (ADR/Ombudsman/Court)

If your airline does not resolve your complaint satisfactorily, you can escalate the matter. First, contact the airline through their Alternative Dispute Resolution (ADR) provider. Use the following wording in your communication: "I wish to escalate my complaint regarding lost luggage to the ADR service. My reference number is [insert reference]." You should initiate this within one year of your original complaint. If ADR is not an option, you may consider filing a small claims court action. This process typically takes around 30 days from the initial filing to a hearing.

What Documentation and Evidence Do I Need to Submit?

To strengthen your claim for lost luggage, you should document the following:

  • Photographs of your luggage, if available.
  • A copy of the Property Irregularity Report (PIR) you received at the airport.
  • Receipts for any interim expenses incurred due to the loss.
  • Boarding passes and travel itinerary.
  • Any correspondence with the airline regarding your claim.

What Should I Know About Money: Interim Expenses and Depreciation?

When your luggage is lost, you may incur interim expenses such as clothing or toiletries. Keep all receipts, as airlines may reimburse you for reasonable expenses. However, be aware that airlines often refuse claims for items deemed excessive or unnecessary. The Montreal Convention does not cover the depreciation of lost items, so it’s essential to claim for full replacement value rather than the depreciated value.

What Mistakes Should I Avoid When Filing a Claim?

A few common mistakes can jeopardize your claim:

  • Failing to report the loss immediately at the airport.
  • Not keeping copies of correspondence with the airline.
  • Missing deadlines for submitting claims or complaints.
  • Underestimating the value of lost items.
  • Not providing sufficient evidence to support your claim.
Insider Tip: Always request a copy of the PIR and keep it safe. The reference number is crucial for any further communication with the airline or ADR.

[Q — documentation: exactly what evidence to gather and keep]

When dealing with a lost luggage claim, the importance of thorough documentation cannot be overstated. Start with taking clear photos of your luggage, including any distinguishing features or damage. Keep all receipts related to interim purchases, such as clothing or toiletries, as these can be claimed back. Remember to note down the serial numbers of valuable items lost in your luggage. Always gather email confirmations, timestamps, and correspondence with the airline, as these will strengthen your case. Don't forget to retain your baggage claim tags, as they provide essential proof of your luggage's journey.

[Q — money: interim expenses and depreciation rules]

According to EU regulations, airlines are obliged to reimburse reasonable expenses incurred due to lost luggage. This includes costs for clothing, toiletries, and other essentials, but be mindful that they may set limits on the amount reimbursable. Typically, a figure around £100-£150 per day is considered reasonable for short-term expenses. In terms of depreciation, airlines may factor in the age and condition of the items lost, using a formula based on the original purchase price. If your claim is undervalued or denied, you can counter this by providing detailed receipts and evidence of the items' value at the time of loss.

[Q — biggest mistakes that kill lost luggage claims]

Several common errors can lead to the rejection of lost luggage claims. One major mistake is filling out the wrong claim form; ensure you're using the specific 'Property Irregularity Report' (PIR) provided by the airline. Missing deadlines is another pitfall; most airlines require claims to be submitted within 21 days of reporting the loss. Additionally, following the incorrect escalation path can hinder your claim. Always escalate your complaint through the appropriate channels, as per the airline's customer service guidelines, to ensure your case is heard.

Insider Tip: When filing your claim, include a detailed 'log of events' that outlines each step you took after your luggage was lost, including dates, times, and points of contact. This comprehensive approach can significantly bolster your claim.

[PAA Q about timeline or amount — include a number]

Typically, airlines must respond to your claim within 30 days. If your luggage remains lost after 21 days, you can escalate your claim for compensation, which is generally capped at €1,400 under the Montreal Convention.

[PAA Q practical angle]

It’s advisable to keep copies of all correspondence with the airline. This includes emails, receipts, and any forms submitted. Having this organized can facilitate a smoother claims process and serve as proof in case of disputes.

[PAA Q legal or rights angle]

Under EU Regulation 261/2004, you have the right to compensation for lost luggage, which can include reimbursement for necessary expenses and claims for lost items. Be aware that airlines may impose time limits, so acting promptly is crucial.

1. What should I do if my luggage is delayed instead of lost?

If your luggage is delayed, report it to the airline immediately and keep track of all expenses incurred during the delay. You have 21 days to file a claim.

2. How can I find out which ADR provider my airline uses?

You can find this information on the airline's website or by contacting their customer service directly.

3. Is there a time limit for filing a claim for lost luggage?

Yes, under the Montreal Convention, you must file your claim within 7 days for lost luggage and 21 days for delayed luggage.

Understanding your rights and the steps to take when dealing with lost luggage is crucial for any traveler. By following the outlined processes and being diligent in your documentation, you can maximize your chances of receiving the compensation you deserve.

Documentation Required for Your ADR Complaint

When filing an Alternative Dispute Resolution (ADR) complaint regarding lost luggage in the UK, it's essential to gather the right documentation. Start with your flight details, including booking reference, flight number, and the date of travel. Include any correspondence with the airline about your lost luggage, such as emails or chat transcripts. Additionally, collect any receipts related to expenses incurred due to the lost luggage, such as clothing or toiletries. If you filed a property irregularity report at the airport, attach a copy of that as well. Proper documentation strengthens your case and helps streamline the resolution process.

Deadlines for Filing an ADR Complaint

Understanding the deadlines for filing an ADR complaint is crucial to ensuring your case is heard. In the UK, you typically have up to one year from the date of your flight to submit a complaint regarding lost luggage. It’s advisable to act quickly, as some airlines may have shorter internal complaint processes. After contacting the airline and receiving their response, you may have a limited time frame to escalate the issue to ADR, often within a few weeks. Always check the specific deadlines outlined by the ADR scheme you choose, as they can vary, and missing a deadline could jeopardize your claim.

Practical Tips for a Successful ADR Complaint

To enhance your chances of a successful ADR complaint for lost luggage, follow these practical tips. First, ensure your complaint is clear and concise, detailing the events and your expectations for resolution. Use bullet points for easy readability. Second, keep a record of all communications with the airline and the ADR body, including dates and names of representatives you spoke with. Third, remain patient and professional throughout the process, as it can take time to resolve complaints. Lastly, consider seeking advice from consumer rights organizations if you're unsure about the process or need additional support in presenting your case.