UA1727 BUF → DEN

United Airlines · Buffalo, NY to Denver, CO · 293 flights observed, 2025-07-01 to 2026-06-30 · 1,359 mi

UA1727 covers more than one route in the data window — the stats below are for BUF → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
86%
Median delay
-3 min
90th percentile
+25 min
Cancellation rate
0%

How often is UA1727 on time?

Across 293 flights on BUF → DEN from 2025-07-01 to 2026-06-30, UA1727 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +25 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time25186%
16-30 min176%
31-60 min93%
61-120 min62%
2+ hrs103%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073187%-1 min
2025-083194%+1 min
2025-093093%0 min
2025-103190%-4 min
2025-113080%+5 min
2025-121100%-8 min
2026-021765%+22 min
2026-033174%+26 min
2026-043090%+5 min
2026-053184%+6 min
2026-063090%+3 min

Performance by day of week

DayFlightsOn-time
Mon4286%
Tue4276%
Wed4180%
Thu4293%
Fri4286%
Sat4293%
Sun4286%

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