United Airlines

United AirlinesService to and from Denver Hub

  • Reservations: 800-864-8331
  • Local: 406-495-1100
  • www.united.com
  • Local Counter Hours of Operation: 4:00-7:00 am; 11:00 am-1:30 pm; and 9:30-11:30 (Note: Counter Hours May Change if Airline Schedule Changes)
  • Montana driver licenses do not currently meet the federal “REAL ID” standards.  However, domestic travelers will not be required to meet those standards until May 7, 2025.  For updated information on the REAL ID, visit mtrealid.gov/faqs/ or  TSA’s website.
  • Checked bags must be at the Counter a minimum of 60 minutes prior to departure.
  • Passengers should pass through the Security Checkpoint immediately after checking in.
  • Aircraft boarding doors close 15 minutes prior to the scheduled departure time.