The most lavish expenditure on record to date was the first lady’s Africa trip and a single Honolulu vacation, which cost taxpayers $15,885,585.30 in flight expenses alone. The single largest expense for accommodations was for Michelle Obama’s side-trip to Dublin, Ireland, during the 2013 G-8 conference in Belfast, when she and her entourage booked 30 rooms at the five-star Shelbourne Hotel, with the first lady staying in the 1,500-square-foot Princess Grace suite at a cost of $3,500 a night. The total cost to taxpayers for the Obamas’ Ireland trip was $7,921,638.66.