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WanderNerd

Route Reliability

Houston → Las Vegas

HOULAS · 1,235 miles · William P. Hobby Airport to Harry Reid International Airport

88
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
0.4%
Cancelled
2,074
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 81% of the time across 2,074 flights. No comparison to make.

What the data says

Morning-you made the right choice.

HOU–LAS flights departing between 3–6 AM arrived on time 99% of the time, versus 63% between 9 PM–12 AM.

Friday is doing you no favors.

HOU–LAS flights arrived on time 85% of the time on Tuesdays. On Fridays: 77%.

Recent months have been rougher.

HOU–LAS flights arrived on time 74% of the time over the last three months in the data, compared with 89% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon82%(323 flights)
  • Tue85%(265 flights)
  • Wed85%(262 flights)
  • Thu80%(321 flights)
  • Fri77%(323 flights)
  • Sat83%(244 flights)
  • Sun78%(326 flights)
On-time by departure window
  • 3–6 AM99%(204 flights)
  • 6–9 AM93%(452 flights)
  • 9 AM–12 PM86%(187 flights)
  • 12–3 PM76%(309 flights)
  • 3–6 PM82%(281 flights)
  • 6–9 PM70%(418 flights)
  • 9 PM–12 AM63%(213 flights)
On-time trend by month
68%
May

Jun 75% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%182
July 202582%189
August 202588%162
September 202583%155
October 202570%192
November 202585%176
December 202590%183
January 202692%164
February 202685%162
March 202680%174
April 202675%164
May 202668%161

Based on 2,074 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.