My One and Only Thrill debuted at number 42 on the US Billboard 200 with 11,000 copies sold in its first week, earning Gardot her highest-peaking album on the chart (until The Absence reached number 33 in 2012), as well as her best sales week. By April 2010, the album had sold 117,000 copies in the United States. The album debuted at number 40 on the UK Albums Chart for the week ending March 28, 2009, eventually peaking at number 12 in late May 2009. It was certified gold by the British Phonographic Industry (BPI) on July 22, 2013, denoting shipments in excess of 100,000 copies.
