If said Medical Reason was a passenger or crew on the plane situation I believe you're SOL. It can be tricky if it's true ill before boarding and unable to find sufficient crew which if it only was delayed at a limited service outstation it is less likely... but no harm is asking.
Just send off an email stating the flight info and requesting compensation for delayed flight according to the arrival delayed time. State that medical exception for a delay must be completely out of the airline's hands and unless said delay is because of something within scheduling control of the crew you expect compensation.
Keep it short, simple but with more info than you've given here to get advice.
Originally Posted by
nas6034
AA first legt, EY rest.
They stated "medical reason"
US-Paris-Auh-Bom
Flight delayed from Paris. As a result missed connection in Auh.