Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 1874 · Houston (IAH) → Denver (DEN)
Sold by United. Still flying: 56 of the last 56 days (Daily).
Arrives on time96%within 15 minutes, of 90 flights
Cancelled0.0%of scheduled flights
An hour or more late3%of flights that operated
When late, on average117 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Denver is 1 h behind Houston).
- Leaves IAH
- 05:15
- Arrives DEN
- 06:47
- Flight time
- 2h 32m
- Days flown, last 8 weeks
- 56 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at IAH
All flights leaving Houston (IAH) at 5–6 am, wherever they’re going: 92% left within 15 minutes and 2.0% were cancelled (3,090 flights in the year). Other United flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.