United Airlines will launch three new regional routes from Denver International and Houston Intercontinental airports from August.
The Chicago-based Star Alliance carrier will begin once daily service between Houston and Williston, North Dakota, and between Denver and Lafayette, Louisiana, on 19 August, the airline confirms. Both flights will be operated on 50-seat Embraer ERJ-145 aircraft.
United will begin once daily service between Houston and Hartford on a 76-seat Embraer 175 operated by Mesa Airlines on 15 October.
The airline already serves Hartford, Lafayette and Williston from other hubs in its system.
No carriers fly any of three routes, Innovata schedules show.