UA1084 ORD → SFO

United Airlines · Chicago, IL to San Francisco, CA · 37 flights observed, 2025-08-19 to 2025-09-24 · 1,846 mi

This flight's reliability varies a lot by day of week — 83% on-time on Tuesdays vs. 40% on Mondays.

UA1084 covers more than one route in the data window — the stats below are for ORD → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
+1 min
90th percentile
+46 min
Cancellation rate
0%

How often is UA1084 on time?

Across 37 flights on ORD → SFO from 2025-08-19 to 2025-09-24, UA1084 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +46 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2670%
16-30 min514%
31-60 min411%
61-120 min25%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081362%+3 min
2025-092475%+6 min

Performance by day of week

DayFlightsOn-time
Mon540%
Tue683%
Wed683%
Thu580%
Fri580%
Sat560%
Sun560%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…