UA1181 IAH → DCA

United Airlines · Houston, TX to Washington, DC · 55 flights observed, 2025-10-26 to 2026-01-05 · 1,208 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 57% on Fridays.

UA1181 covers more than one route in the data window — the stats below are for IAH → DCA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-5 min
90th percentile
+57 min
Cancellation rate
0%

How often is UA1181 on time?

Across 55 flights on IAH → DCA from 2025-10-26 to 2026-01-05, UA1181 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +57 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4176%
16-30 min24%
31-60 min59%
61-120 min59%
2+ hrs12%

Performance by month

MonthFlightsOn-timeAvg delay
2025-10650%+26 min
2025-112864%+15 min
2025-1215100%-10 min
2026-015100%-5 min

Performance by day of week

DayFlightsOn-time
Mon9100%
Tue771%
Wed786%
Thu771%
Fri757%
Sat863%
Sun978%

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