UA4378 BDL → IAD

United Airlines · Hartford, CT to Washington, DC · 14 flights observed, 2025-12-19 to 2026-01-04 · 325 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -6 min, while the worst 10% run +267 min or later.

UA4378 covers more than one route in the data window — the stats below are for BDL → IAD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
79%
Median delay
-6 min
90th percentile
+267 min
Cancellation rate
0%

How often is UA4378 on time?

Across 14 flights on BDL → IAD from 2025-12-19 to 2026-01-04, UA4378 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +267 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1179%
16-30 min00%
31-60 min17%
61-120 min00%
2+ hrs214%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121275%+66 min
2026-012100%-16 min

Performance by day of week

DayFlightsOn-time
Mon250%
Tue250%
Wed2100%
Thu1100%
Fri2100%
Sat250%
Sun3100%

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