Complaint letter generator
Flight Delay Complaint Letter Generator
Create a flight delay complaint letter that clearly sets out what happened, how long you were delayed, and what remedy you expect. This free AI tool helps you write a calm, structured complaint letter that is ready to send to the airline.
Preview one letter free in this browser, then unlock the clean version for PDF download.
Tell us what happened
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Your letter will appear here
After you submit the form, your complaint letter preview will appear below with the unlock options directly underneath it.
Dear Customer Relations Team, Your completed complaint letter will be drafted here...
How to use this letter
Check the exact delay length before sending so your complaint stays precise. Keep proof such as boarding passes, airline alerts, meal receipts, or alternative travel costs with your final letter. The strongest flight delay complaints explain the disruption, the inconvenience it caused, and the outcome you want, such as compensation or reimbursement. Send the finished letter to the airline's customer relations team and keep a copy so you can follow up if there is no reply within the requested window.
Official guidance
What the UK CAA says to include in a flight delay complaint
The UK Civil Aviation Authority recommends complaining directly to the airline, sending the claim to the customer relations department, and making your case with enough evidence to show you were on the disrupted flight. That is why this page focuses on flight details, delay length, and the remedy you want.
Include the travel facts the airline can verify
Use the flight date, flight number, passenger name, and route details exactly as they appear on the booking. Keep supporting proof such as boarding passes, booking confirmations, airline alerts, and receipts for delay-related costs with the final letter.
Keep the complaint practical and remedy-focused
A stronger complaint explains the length of the delay, the disruption it caused, and whether you are asking for reimbursement, compensation, or a written explanation. Staying factual makes the claim easier for the airline to process.
Escalate only after the airline has had the chance to respond
If the airline does not resolve the issue, it should tell you whether you can use an approved ADR provider. If the airline is not signed up to ADR, the CAA's Passenger Advice and Complaints Team may be able to help with eligible air passenger rights complaints.
FAQ
What should I include in a flight delay complaint letter?
Include the names, dates, reference numbers, a factual summary of the issue, and the outcome you want. The generator uses those details to draft a professional letter you can review before sending.
Can I edit this flight delay complaint letter before I send it?
Yes. The generated letter is a strong starting point, not a locked template. You should review the wording, add any missing evidence or references, and make sure the final version matches your situation exactly.
Where should I send a flight delay complaint letter?
Send it through the company's or organisation's formal complaints channel whenever possible. Email is usually fine as long as you keep a copy, and attaching supporting evidence can make your complaint easier to resolve.