Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 1577 · Chicago (ORD) → San Francisco (SFO)
Sold by United. Still flying: 51 of the last 56 days (Mon, Tue, Wed, Thu, Fri, Sun).
Arrives on time74%within 15 minutes, of 359 flights
Cancelled1.1%of scheduled flights
An hour or more late14%of flights that operated
When late, on average110 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 Chicago).
- Leaves ORD
- 14:30
- Arrives SFO
- 17:19
- Flight time
- 4h 49m
- Days flown, last 8 weeks
- 51 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 ORD
All flights leaving Chicago (ORD) at 2–3 pm, wherever they’re going: 73% left within 15 minutes and 2.4% were cancelled (25,172 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.