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

UA 1799 · Las Vegas (LAS) → San Francisco (SFO)

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

Arrives on time57%within 15 minutes, of 270 flights
Cancelled0.7%of scheduled flights
An hour or more late15%of flights that operated
When late, on average62 minlate, among flights 15+ min late

Schedule

Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.

Leaves LAS
13:34
Arrives SFO
15:16
Flight time
1h 42m
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 late43%
30+ min late31%
1h+ late15%
2h+ late4%
20%40%60% 015301h1h302h3h

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

Its hour at LAS

All flights leaving Las Vegas (LAS) at 1–2 pm, wherever they’re going: 74% left within 15 minutes and 0.8% were cancelled (10,033 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.