The codeshare tie-up between United Airlines and Boutique Air gives the U.S. major extensive reach into smaller communities, particularly from its Denver hub, while giving the regional operator both passenger feed and a leg up as it looks to grow its extensive Essential Air Service (EAS)-focused operation. The deal expands on an existing interline agreement, in place since May 2017, by putting United’s code on Boutique’s flights throughout the regional carrier’s ...