UA2255 DEN → BOI

United Airlines · Denver, CO to Boise, ID · 94 flights observed, 2026-03-29 to 2026-06-30 · 649 mi

UA2255 covers more than one route in the data window — the stats below are for DEN → BOI, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
85%
Median delay
0 min
90th percentile
+28 min
Cancellation rate
0%

How often is UA2255 on time?

Across 94 flights on DEN → BOI from 2026-03-29 to 2026-06-30, UA2255 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +28 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time8085%
16-30 min55%
31-60 min55%
61-120 min22%
2+ hrs22%

Performance by month

MonthFlightsOn-timeAvg delay
2026-033100%-9 min
2026-043083%+8 min
2026-053187%+9 min
2026-063083%+9 min

Performance by day of week

DayFlightsOn-time
Mon1493%
Tue1493%
Wed1377%
Thu1385%
Fri1377%
Sat1392%
Sun1479%

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