UA4284 GSO → IAD

United Airlines · Greensboro/High Point, NC to Washington, DC · 185 flights observed, 2025-07-01 to 2026-03-28 · 239 mi

This flight's scheduled flight time has grown by 12 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA4284 covers more than one route in the data window — the stats below are for GSO → IAD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-15 min
90th percentile
+39 min
Cancellation rate
4%

How often is UA4284 on time?

Across 185 flights on GSO → IAD from 2025-07-01 to 2026-03-28, UA4284 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +39 min or later. 4% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time14883%
16-30 min84%
31-60 min95%
61-120 min53%
2+ hrs84%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071580%+21 min
2025-082387%-6 min
2025-092496%-13 min
2025-10560%+7 min
2025-112483%-6 min
2025-121765%+16 min
2026-012090%-12 min
2026-022483%-7 min
2026-032681%+39 min

Performance by day of week

DayFlightsOn-time
Mon2979%
Tue3288%
Wed2580%
Thu2997%
Fri2475%
Sat1681%
Sun2378%

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