United Airlines also plans to add ES-19s

Supporting the investment of United Airlines' partner Mesa Air Group, United also signed-up to add the Heart Aerospace ES-19. Similar as Mesa, United is also committing to add 100 ES-19s, once the aircraft meets the airline's safety, business and operating requirements.

According to the airline, once the ES-19 is operational with United Express, it could serve on more than 100 regional routes of the airline's hubs. United's press-release states example routes as Chicago-O'Hare (IL) to Purdue-University Airport (IN) and San Francisco (CA) to Modesto City (CA).

Illustration by United Airlines.