How to complain about a Delta Airlines flight?

You may have a problem or dispute with a Delta product or service i.e. the flight was delayed for more than 3 hours or cancelled, loss or damage of luggage or the service you received was unsatisfactory. If this is the case,this page will help you understand how to raise your complaint about a Delta Airlines flight. If you have already complained to Delta, you can use our ‘airline’ complaint form to get your complaint process started.

Before making a complaint about Delta

Please note that to be eligible to make a complaint against Delta, you must have already complained to Delta directly in writing and either received a final written response (sometimes referred to as a ‘deadlock letter’) or given Delta eight (8) weeks to respond to your dispute. Aviation Dispute Resolution can only deal with unresolved complaints.

What Delta complaints can we deal with?

The airline sector covers complaints against any Delta flight where the flight in question departed from a UK airport.

We can deal with most disputes between consumers and airlines, including disputes in relation to:

  • Cancelled flights
  • Delayed flights
  • Damaged, lost or delayed luggage
  • Destruction, damage or loss of items worn or carried by a passenger
  • Problems faced by disabled passengers or passengers with reduced mobility
  • Issues of unfair trading
  • Pricing
  • Misrepresentation

Ways to make your Delta Airlines complaint

There are three (3) ways to bring your complaint to AviationADR:


You can download our paper complaint form here and send the completed form to:

Stratford Office Village
Unit 12 Walker Avenue, Wolverton
Milton Keynes
MK12 5TW


If you have access to the Internet you can file your complaint via our online portal. To access this, simply go to the homepage of the website and click on ‘START MY COMPLAINT’. As soon as you have filed your complaint you will be taken to your own personal portal page. This page provides you with live information about your claim so that you can check the progress at any time of day. Or just simply click here.


You can telephone us on 0203 540 8063.

For more information about AirlineADR, please view our FAQ page.