UA1734 IAD → LAX

United Airlines · Washington, DC to Los Angeles, CA · 171 flights observed, 2025-12-18 to 2026-06-29 · 2,288 mi

UA1734 covers more than one route in the data window — the stats below are for IAD → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
85%
Median delay
-10 min
90th percentile
+23 min
Cancellation rate
2%

How often is UA1734 on time?

Across 171 flights on IAD → LAX from 2025-12-18 to 2026-06-29, UA1734 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +23 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time14385%
16-30 min127%
31-60 min64%
61-120 min21%
2+ hrs53%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121479%-6 min
2026-012976%+29 min
2026-022785%-5 min
2026-033181%-3 min
2026-043087%-1 min
2026-0524100%-13 min
2026-061392%-4 min

Performance by day of week

DayFlightsOn-time
Mon2896%
Tue2282%
Wed2195%
Thu2875%
Fri2789%
Sat2181%
Sun2176%

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