In 2010, United acquired Continental Airlines in a merger completed later that year. Initially, the entities remained separate, with United continuing to use a variant of the slant U logo. The logo and livery was presented with the merger on May 3 and keeps most aspects of Continental's identity, but replaces the Continental name with United.
On August 11, 2010, the initial merger identity was replaced after only four months, with a tweaked logo and livery revealed. The merger was officially completed on October 1, 2010.
In April 2019, United Airlines introduced their new livery and updated the logo color with their brand new "United Blue", and the amount of windows on the globe was reduced.