UA1311 LAX → IAD

United Airlines · Los Angeles, CA to Washington, DC · 37 flights observed, 2025-10-26 to 2025-12-01 · 2,288 mi

This flight's reliability varies a lot by day of week — 80% on-time on Tuesdays vs. 40% on Fridays.

UA1311 covers more than one route in the data window — the stats below are for LAX → IAD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
+8 min
90th percentile
+51 min
Cancellation rate
3%

How often is UA1311 on time?

Across 37 flights on LAX → IAD from 2025-10-26 to 2025-12-01, UA1311 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +51 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2467%
16-30 min617%
31-60 min38%
61-120 min26%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-10580%+7 min
2025-113063%+18 min
2025-121100%+8 min

Performance by day of week

DayFlightsOn-time
Mon560%
Tue580%
Wed580%
Thu580%
Fri540%
Sat560%
Sun667%

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