Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 434 · Houston (IAH) → Los Angeles (LAX)
Sold by United. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2026-03-28.
Arrives on time82%within 15 minutes, of 108 flights
Cancelled1.9%of scheduled flights
An hour or more late5%of flights that operated
When late, on average54 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Los Angeles is 2 h behind Houston).
- Leaves IAH
- 21:35
- Arrives LAX
- 23:30
- Flight time
- 3h 53m
- Days flown, last 8 weeks
- 0 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 9–10 pm, wherever they’re going: 79% left within 15 minutes and 1.3% were cancelled (4,392 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.