UA1225 SFO → ORD

United Airlines · San Francisco, CA to Chicago, IL · 68 flights observed, 2025-08-19 to 2025-10-25 · 1,846 mi

This flight's reliability varies a lot by day of week — 90% on-time on Tuesdays vs. 50% on Saturdays.

UA1225 covers more than one route in the data window — the stats below are for SFO → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
72%
Median delay
-4 min
90th percentile
+42 min
Cancellation rate
0%

How often is UA1225 on time?

Across 68 flights on SFO → ORD from 2025-08-19 to 2025-10-25, UA1225 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +42 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4972%
16-30 min812%
31-60 min69%
61-120 min46%
2+ hrs11%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0813100%-10 min
2025-093070%+8 min
2025-102560%+16 min

Performance by day of week

DayFlightsOn-time
Mon967%
Tue1090%
Wed1080%
Thu1080%
Fri1070%
Sat1050%
Sun967%

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