This is the shocking moment a Ryanair passenger sobbed after being stopped from boarding a plane due to her hand luggage being 'too large'.

Filmed at Sofia Airport in Bulgaria, the dramatic footage captures a tearful woman who was brought to her knees in distress as she banged on an airport door while pleading with members of security to allow her onto the aircraft.

The incident is said to have taken place on Thursday, July 24, with the unnamed female passenger set to travel on a flight from Sofia to Vienna, Austria.

A member of 'Border Police' staff angrily gestures to the door, while the woman appears to emotionally plead with him.

Shocked passengers waiting to board a bus to the aircraft watched on as the tearful woman hit the doors separating her and the other passengers in despair.