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Flight Reliability

UA 2431 · United Airlines

Houston → Los Angeles (IAH–LAX)84% of its flights flew this route. The rest (LAX–JAC, ORD–DEN) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
11 min early
Average arrival delay
0.5%
Cancelled
15 min early
Median arrival delay

Based on 418 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

UA 2431 departing between 6–9 AM arrived on time 96% of the time, versus 87% between 9 AM–12 PM.

Skip Saturday if you can.

UA 2431 arrived on time 100% of the time on Wednesdays. On Saturdays: 88%.

Better than the IAH–LAX route average.

UA 2431 arrived on time 95% of the time, versus 84% across the IAH–LAX route.

Well ahead of the United Airlines network.

UA 2431 arrived on time 95% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon92%(60 flights)
  • Tue97%(58 flights)
  • Wed100%(58 flights)
  • Thu95%(60 flights)
  • Fri97%(60 flights)
  • Sat88%(60 flights)
  • Sun97%(60 flights)
On-time by departure window
  • 3–6 AM—(6 flights)
  • 6–9 AM96%(356 flights)
  • 9 AM–12 PM87%(54 flights)
On-time trend by month
90%
May

Jun 94% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%35
July 202597%62
August 202592%49
September 2025100%30
October 202597%31
November 202597%30
December 202594%31
January 202697%30
February 202693%27
March 202693%30
April 202697%30
May 202690%31
Departures on time
95%
Diverted
0%
Flights flown
416
Months covered
12

Same route, other flights

Keep nerding

Based on 418 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.