UA4854 TYS → IAH

United Airlines · Knoxville, TN to Houston, TX · 295 flights observed, 2025-07-01 to 2026-05-20 · 771 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -9 min, while the worst 10% run +90 min or later.

UA4854 covers more than one route in the data window — the stats below are for TYS → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
75%
Median delay
-9 min
90th percentile
+90 min
Cancellation rate
1%

How often is UA4854 on time?

Across 295 flights on TYS → IAH from 2025-07-01 to 2026-05-20, UA4854 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +90 min or later. 1% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time21775%
16-30 min155%
31-60 min93%
61-120 min3010%
2+ hrs176%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072255%+35 min
2025-082268%+28 min
2025-092681%+9 min
2025-103067%+14 min
2025-112972%+10 min
2025-122778%+16 min
2026-012685%+31 min
2026-022692%-18 min
2026-033077%+4 min
2026-043083%+6 min
2026-052065%+50 min

Performance by day of week

DayFlightsOn-time
Mon4578%
Tue4269%
Wed4477%
Thu4573%
Fri4576%
Sat3077%
Sun3778%

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