UA4451 GSO → ORD

United Airlines · Greensboro/High Point, NC to Chicago, IL · 37 flights observed, 2026-05-21 to 2026-06-30 · 589 mi

This flight has been cancelled 8% of the time in the ingested window — notably higher than typical.

UA4451 covers more than one route in the data window — the stats below are for GSO → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
71%
Median delay
-15 min
90th percentile
+108 min
Cancellation rate
8%

How often is UA4451 on time?

Across 37 flights on GSO → ORD from 2026-05-21 to 2026-06-30, UA4451 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +108 min or later. 8% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2471%
16-30 min13%
31-60 min13%
61-120 min515%
2+ hrs39%

Performance by month

MonthFlightsOn-timeAvg delay
2026-057100%-18 min
2026-062763%+39 min

Performance by day of week

DayFlightsOn-time
Mon5100%
Tue667%
Wed450%
Thu580%
Fri667%
Sat475%
Sun450%

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