Cancelling a flight for medical reasons: medical certificate and refund

Travel cancellationUpdated 17 June 2026

A sudden illness, an injury or a condition that makes flying inadvisable can force you to give up a long-planned trip. To assert your rights with the airline or your cancellation insurer, a clear, properly dated medical certificate is often the central piece of the file. Here are the situations involved, the concrete steps and the timing reflexes that make the difference.

When is a medical cancellation certificate useful?

A medical travel-cancellation certificate confirms that a health reason prevents you from taking your flight, or makes the trip inadvisable on the scheduled date. It is a factual document: it records a temporary incapacity or contraindication, without necessarily detailing the diagnosis, so as to respect medical confidentiality while giving the insurer the information it needs.

The most common grounds relate to a health condition that arose or worsened after booking. Depending on the contract, cancellation insurance may cover part or all of the costs incurred, but conditions vary from one policy to another.

The concrete steps to cancel and build your file

The logic is always the same: report quickly, have your situation medically confirmed, then submit a complete file. Acting in the right order avoids most refusals caused by a late declaration or missing documents.

In practice, several steps can be handled in parallel as soon as you know the trip cannot go ahead.

How to obtain a medical cancellation certificate

The certificate must be written and signed by a doctor registered with the medical board. A medical assessment is still required: it can be carried out by phone or WhatsApp, with video available as an option if the situation calls for it. The doctor assesses your condition, gathers the relevant information and factually attests to the incapacity or contraindication.

With Certi-Fly, this process is designed to be quick and clear: you describe your situation, a doctor carries out the remote assessment, and the certificate is generally issued within 24 h. The document includes the wording usually expected by airlines and insurers, which helps your file move forward. A properly drafted certificate never guarantees a refund on its own: the final decision rests with the airline and the insurer, according to your contract.

The right timing and reflexes to adopt

Timing is often the deciding factor. Most cancellation insurance contracts require you to report the claim quickly, and to have your condition medically confirmed when it occurs rather than several days later. A certificate established at the relevant date is stronger than a document drafted belatedly.

A few simple reflexes greatly reduce the risk of refusal and speed up processing.

Need a cancellation certificate?

Describe your situation, a doctor registered with the medical board carries out the assessment remotely and issues your certificate, generally within 24 h.

Get my certificate

Frequently asked questions

Does a medical certificate guarantee a refund of my flight?

No. The certificate factually confirms your medical situation, but the refund decision always depends on the conditions of your ticket and your insurance contract. Terms vary by airline and policy; check your terms and conditions and your insurer.

Do I need an in-person consultation to obtain the certificate?

Not necessarily. A medical assessment can be carried out remotely, by phone or WhatsApp, with video as an option. The doctor evaluates your condition and issues the certificate if it is justified.

How quickly can I receive my certificate?

With Certi-Fly, the certificate is generally issued within 24 h after the medical assessment. It is best to start the process as soon as you know the trip is compromised, rather than waiting until the last minute.

Which supporting documents should I include with my refund claim?

Usually: the medical certificate, your ticket and booking confirmation, the fare conditions, and any other relevant document requested by the insurer. Check the exact list of documents and the deadlines directly with your cancellation insurer.