Flight history · Aug 2025 – Jul 2026 · US DOT on-time records

UA 1936 · Ontario (ONT) → Houston (IAH)

Sold by United. Still flying: 56 of the last 56 days (Daily).

Arrives on time91%within 15 minutes, of 365 flights
Cancelled0.5%of scheduled flights
An hour or more late3%of flights that operated
When late, on average94 minlate, among flights 15+ min late

Schedule

Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Houston is 2 h ahead of Ontario).

Leaves ONT
05:45
Arrives IAH
11:04
Flight time
3h 19m
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.

15+ min late9%
30+ min late5%
1h+ late3%
2h+ late2%
10%20%30%40% 015301h1h302h3h

Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.

Its hour at ONT

All flights leaving Ontario (ONT) at 5–6 am, wherever they’re going: 95% left within 15 minutes and 0.5% were cancelled (1,565 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.