UA377 DEN → ORD

United Airlines · Denver, CO to Chicago, IL · 269 flights observed, 2025-07-01 to 2026-03-28 · 888 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -7 min, while the worst 10% run +53 min or later.

UA377 covers more than one route in the data window — the stats below are for DEN → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
77%
Median delay
-7 min
90th percentile
+53 min
Cancellation rate
0%

How often is UA377 on time?

Across 269 flights on DEN → ORD from 2025-07-01 to 2026-03-28, UA377 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +53 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time20777%
16-30 min187%
31-60 min187%
61-120 min124%
2+ hrs135%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073057%+35 min
2025-083165%+18 min
2025-093073%+3 min
2025-103190%-4 min
2025-112882%+1 min
2025-123181%+7 min
2026-013187%-3 min
2026-022882%-7 min
2026-032879%+19 min

Performance by day of week

DayFlightsOn-time
Mon3876%
Tue3974%
Wed3982%
Thu3876%
Fri3874%
Sat3884%
Sun3874%

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