UA5821 MSO → DEN

United Airlines · Missoula, MT to Denver, CO · 17 flights observed, 2026-05-21 to 2026-06-30 · 679 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is 0 min, while the worst 10% run +72 min or later.

UA5821 covers more than one route in the data window — the stats below are for MSO → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
71%
Median delay
0 min
90th percentile
+72 min
Cancellation rate
0%

How often is UA5821 on time?

Across 17 flights on MSO → DEN from 2026-05-21 to 2026-06-30, UA5821 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +72 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1271%
16-30 min16%
31-60 min16%
61-120 min318%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-051173%+10 min
2026-06667%+21 min

Performance by day of week

DayFlightsOn-time
Mon250%
Tue250%
Wed10%
Thu3100%
Fri367%
Sat3100%
Sun367%

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