UA3504 BHM → ORD

United Airlines · Birmingham, AL to Chicago, IL · 21 flights observed, 2026-02-12 to 2026-03-04 · 584 mi

UA3504 covers more than one route in the data window — the stats below are for BHM → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
90%
Median delay
-6 min
90th percentile
+15 min
Cancellation rate
0%

How often is UA3504 on time?

Across 21 flights on BHM → ORD from 2026-02-12 to 2026-03-04, UA3504 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +15 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1990%
16-30 min00%
31-60 min210%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021788%+2 min
2026-034100%-22 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue367%
Wed3100%
Thu3100%
Fri367%
Sat3100%
Sun3100%

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