She has already been on a number of adventures, from her first arrival in Portsmouth through to her deployment to the east coast of the U.S, through to becoming the fleet flagship and finally departing on her maiden operational deployment.
Here are pictures of the aircraft carrier over the years.
17. HMS Queen Elizabeth returns home
HMS Queen Elizabeth sailed back into her home port of Portsmouth Naval Base on November 21, 2017, following a second set of sea trials. Picture: Matt Cardy/Getty Images Photo: Matt Cardy
18. HMS Queen Elizabeth leaves for Westlant18
HMS Queen Elizabeth leaves Portsmouth for F-35 flight tests in the US on August 18, 2018. Picture: Steve Parson/ PA Wire Photo: PA
19. Crowds wave HMS Queen Elizabeth off
Huge crowds gathered to wave HMS Queen Elizabeth off as she left Portsmouth Harbour for deployment in America. Picture: Steve Parsons/PA Wire Photo: PA
20. HMS Queen Elizabeth arrives in Florida
After a couple of weeks at sea, HMS Queen Elizabeth arrived in Mayport, Florida, USA, to much fanfare. It was her first stop on her deployment to the U.S. Picture: LPhot Kyle Heller/ Royal Navy Photo: LPhot Kyle Heller