UA5100 ORD → DEC

United Airlines · Chicago, IL to Decatur, IL · 35 flights observed, 2025-07-02 to 2025-08-18 · 156 mi

This flight's reliability varies a lot by day of week — 71% on-time on Wednesdays vs. 33% on Sundays.

UA5100 covers more than one route in the data window — the stats below are for ORD → DEC, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
50%
Median delay
+14 min
90th percentile
+120 min
Cancellation rate
3%

How often is UA5100 on time?

Across 35 flights on ORD → DEC from 2025-07-02 to 2025-08-18, UA5100 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +120 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1750%
16-30 min412%
31-60 min618%
61-120 min39%
2+ hrs412%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072157%+38 min
2025-081338%+33 min

Performance by day of week

DayFlightsOn-time
Mon743%
TueNo data—
Wed771%
Thu743%
Fri757%
SatNo data—
Sun633%

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