UA4553 TYS → ORD

United Airlines · Knoxville, TN to Chicago, IL · 19 flights observed, 2025-12-18 to 2026-01-05 · 475 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -10 min, while the worst 10% run +252 min or later.

UA4553 covers more than one route in the data window — the stats below are for TYS → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
79%
Median delay
-10 min
90th percentile
+252 min
Cancellation rate
0%

How often is UA4553 on time?

Across 19 flights on TYS → ORD from 2025-12-18 to 2026-01-05, UA4553 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +252 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1579%
16-30 min00%
31-60 min00%
61-120 min00%
2+ hrs421%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121479%+63 min
2026-01580%+22 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue250%
Wed250%
Thu3100%
Fri333%
Sat3100%
Sun3100%

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