UA1971 IAH → LAS

United Airlines · Houston, TX to Las Vegas, NV · 365 flights observed, 2025-07-01 to 2026-06-30 · 1,222 mi

UA1971 covers more than one route in the data window — the stats below are for IAH → LAS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
84%
Median delay
-11 min
90th percentile
+36 min
Cancellation rate
0%

How often is UA1971 on time?

Across 365 flights on IAH → LAS from 2025-07-01 to 2026-06-30, UA1971 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +36 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time30584%
16-30 min185%
31-60 min103%
61-120 min216%
2+ hrs103%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073165%+36 min
2025-083174%-4 min
2025-092990%+1 min
2025-103190%-2 min
2025-113090%-8 min
2025-1231100%-18 min
2026-013184%-9 min
2026-022893%-16 min
2026-033184%+4 min
2026-043080%+1 min
2026-053184%+9 min
2026-063073%+11 min

Performance by day of week

DayFlightsOn-time
Mon5281%
Tue5387%
Wed5290%
Thu5281%
Fri5178%
Sat5279%
Sun5290%

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