Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 1976 · Houston (IAH) → San Francisco (SFO)
Sold by United. Still flying: 25 of the last 56 days (Mon, Thu, Fri, Sun).
Arrives on time33%within 15 minutes, of 25 flights
Cancelled0.0%of scheduled flights
An hour or more late21%of flights that operated
When late, on average61 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Francisco is 2 h behind Houston).
- Leaves IAH
- 19:35
- Arrives SFO
- 21:44
- Flight time
- 4h 09m
- Days flown, last 8 weeks
- 25 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 7–8 pm, wherever they’re going: 71% left within 15 minutes and 1.0% were cancelled (7,518 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.