- ExpressJet Airlines was a regional airline in the United States that started operations in 1986. It operated under a few different names throughout its history, including Continental Express and United Express. ExpressJet provided regional flights for major airlines, including Continental Airlines, United Airlines, and American Airlines.
- The airline operated a fleet of regional jets, such as the Embraer ERJ-145, for short-haul flights. ExpressJet provided connections to smaller cities from major hubs, helping passengers travel to their final destinations.
- In 2019, ExpressJet Airlines announced that it would cease operations as a standalone airline and transition into a capacity purchase agreement with United Airlines. This meant that ExpressJet flights would be operated on behalf of United Airlines, providing regional service under the United Express brand.
- As of 2021, ExpressJet Airlines has fully transitioned into a capacity purchase agreement with United Airlines and no longer operates as an independent airline.