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Route Reliability

Los Angeles → Houston

LAX–IAH · 1,379 miles · Los Angeles International Airport to George Bush Intercontinental Airport

88
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
Cancelled
5,291
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines87%646 flights
  2. 2.United Airlines87%3,394 flights
  3. 3.American Airlines84%409 flights
  4. 4.Spirit Airlines77%510 flights
  5. 5.Frontier Airlines64%332 flights

What the data says

Morning flights do better here.

LAX–IAH flights departing between 3–6 AM arrived on time 94% of the time, versus 73% between 12–3 PM.

Wednesday comes out ahead.

A small edge: 88% on time on Wednesdays against 82% on Sundays.

Delta Air Lines has a clear lead on this route.

Delta Air Lines arrived on time 87% of the time on this route; Frontier Airlines managed 64%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon85%(776 flights)
  • Tue85%(706 flights)
  • Wed88%(733 flights)
  • Thu87%(773 flights)
  • Fri83%(776 flights)
  • Sat83%(681 flights)
  • Sun82%(783 flights)
On-time by departure window
  • 12–3 AM90%(484 flights)
  • 3–6 AM94%(327 flights)
  • 6–9 AM93%(967 flights)
  • 9 AM–12 PM85%(981 flights)
  • 12–3 PM73%(1084 flights)
  • 3–6 PM84%(427 flights)
  • 6–9 PM81%(732 flights)
  • 9 PM–12 AM86%(226 flights)
On-time trend by month
87%
May

Jun 78% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%417
July 202581%440
August 202587%436
September 202593%439
October 202588%493
November 202578%442
December 202580%443
January 202687%430
February 202687%397
March 202681%437
April 202688%432
May 202687%422

Same trip, other airports

Keep nerding

Based on 5,291 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.