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Flight Reliability

UA 1264 · United Airlines

Houston → Las Vegas (IAH–LAS)84% of its flights flew this route. The rest (DEN–JAX, LAS–EWR) are included in these numbers.

99
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
8 min early
Average arrival delay
0%
Cancelled
13 min early
Median arrival delay

Based on 372 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 1264 departing between 6–9 AM arrived on time 94% of the time, versus 73% between 3–6 PM.

Saturday is the weak spot.

UA 1264 arrived on time 94% of the time on Sundays. On Saturdays: 87%.

Better than the IAH–LAS route average.

UA 1264 arrived on time 91% of the time, versus 83% across the IAH–LAS route.

Better than the United Airlines network average.

UA 1264 arrived on time 91% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon91%(55 flights)
  • Tue90%(48 flights)
  • Wed94%(52 flights)
  • Thu91%(54 flights)
  • Fri93%(55 flights)
  • Sat87%(55 flights)
  • Sun94%(53 flights)
On-time by departure window
  • 6–9 AM94%(315 flights)
  • 9 AM–12 PM80%(15 flights)
  • 3–6 PM73%(40 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
90%
May

Jun 93% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202590%31
August 202583%46
September 202573%30
October 202586%28
November 202597%30
December 202597%31
January 202697%29
February 2026100%28
March 2026100%28
April 202697%30
May 202690%31
Departures on time
92%
Diverted
0%
Flights flown
372
Months covered
12

Same route, other flights

Keep nerding

Based on 372 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.