UA1254 DEN → SEA

United Airlines · Denver, CO to Seattle, WA · 18 flights observed, 2025-08-01 to 2025-08-18 · 1,024 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is +2 min, while the worst 10% run +90 min or later.

UA1254 covers more than one route in the data window — the stats below are for DEN → SEA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
72%
Median delay
+2 min
90th percentile
+90 min
Cancellation rate
0%

How often is UA1254 on time?

Across 18 flights on DEN → SEA from 2025-08-01 to 2025-08-18, UA1254 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +90 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1372%
16-30 min211%
31-60 min00%
61-120 min211%
2+ hrs16%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081872%+19 min

Performance by day of week

DayFlightsOn-time
Mon367%
Tue2100%
Wed2100%
Thu2100%
Fri333%
Sat3100%
Sun333%

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