British Airways flight attendant suggests asking check-in staff for upgrade chances.

Flight attendant shares easy tip for free upgrade: Asking at the check-in desk for an upgrade could increase chances, according to a British Airways flight attendant. "Ultimately if you don't ask you don't get," they said, adding that flight attendants themselves have no control over seat changes. Instead, it's the check-in staff who can see flight availability and have all the control.