Fear of flying

Benzodiazepines (Diazepam) are not advised for use to overcome fear of flying

some reasons for this include:

Sedation and therefore impaired ability to follow instructions in event of an emergency.

Increased sedation and lack of movement and therefore increased risk of DVT

Occasionally diazepam can cause agitation rather than sedation.

Benzodiazepines (Diazepam) are banned in a some countries.

There are a number of useful courses to help you tackle this phobia

Fear of flying course | Fearless Flyer (easyjet.com)

Flying Without Fear | Courses to Conquer Your Fear of Flying

Fear of flying courses from British Airways™ | Flying With Confidence