United Airlines flights from Buffalo (BUF) to Denver (DEN).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:17 Buffalo (BUF) 10:01 Denver (DEN)
United Airlines UA 1727 Non-stop Boeing 737-800 (738) 3:44 Effective 2026-03-05 through 2026-03-28
Daily 08:25 Buffalo (BUF) 10:09 Denver (DEN)
United Airlines UA 1727 Non-stop Boeing 737-800 (738) 3:44 Effective 2026-02-12 through 2026-03-04
Daily 08:30 Buffalo (BUF) 10:15 Denver (DEN)
United Airlines UA 1727 Non-stop Boeing 737-800 (738) 3:45 Effective from 2026-03-29


United Airlines flights from Buffalo (BUF) to Denver (DEN).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:44, non-stop
Boeing 737-800 (738)

Direct Flights:

Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:44, non-stop
Boeing 737-800 (738)

Direct Flights:

Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:45, non-stop
Boeing 737-800 (738)
  • A domestic route departing from the Buffalo airport (BUF) and arriving at Denver airport (DEN).
  • The flight distance is 1355 miles, or 2180 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 3:44 and 3:45.