UA587 IAD → DEN

United Airlines · Washington, DC to Denver, CO · 18 flights observed, 2026-03-05 to 2026-03-28 · 1,452 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -12 min, while the worst 10% run +54 min or later.

UA587 covers more than one route in the data window — the stats below are for IAD → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-12 min
90th percentile
+54 min
Cancellation rate
6%

How often is UA587 on time?

Across 18 flights on IAD → DEN from 2026-03-05 to 2026-03-28, UA587 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +54 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1376%
16-30 min16%
31-60 min16%
61-120 min212%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-031776%0 min

Performance by day of week

DayFlightsOn-time
MonNo data—
TueNo data—
Wed367%
Thu475%
Fri333%
Sat4100%
Sun3100%

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