OnTimeRoutes
A

Delta Air Lines LAX to IAH on-time performance

Delta Air Lines nonstop flights from Los Angeles to Houston · Aug 2025 – Jul 2026

On-time arrivals
85%
arrived < 15 min late
Cancelled
1.1%
7 flights
Avg arrival delay
12 min
70 min when late
Rank on route
#2 of 5
route average 85% on time

Key facts

  • Delta Air Lines flights on LAX to IAH arrived on time 85% of the time in Aug 2025 – Jul 2026.
  • 1.1% were cancelled, and 6% arrived an hour or more late.
  • That ranks #2 of 5 airlines on this route, which averaged 85% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).

On-time trend by month

60%80%100%July 2025: 86.3% on time, 0.0% cancelledJul ’25August 2025: 92.5% on time, 1.9% cancelledAug ’25September 2025: 94.1% on time, 0.0% cancelledSep ’25October 2025: 90.7% on time, 0.0% cancelledOct ’25November 2025: 83.3% on time, 4.0% cancelledNov ’25December 2025: 83.9% on time, 1.8% cancelledDec ’25January 2026: 80.0% on time, 3.8% cancelledJan ’26February 2026: 88.0% on time, 0.0% cancelledFeb ’26March 2026: 83.9% on time, 1.7% cancelledMar ’26April 2026: 91.1% on time, 0.0% cancelledApr ’26May 2026: 80.4% on time, 0.0% cancelledMay ’26June 2026: 78.8% on time, 0.0% cancelledJun ’26July 2026: 72.7% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)52%
  • Late-arriving aircraft29%
  • Air traffic control & airport congestion19%
  • Extreme weather0%
  • Security0%

Other airlines on LAX to IAH

Full LAX to IAH comparison →
Delta Air Lines on-time record across all routes →

646 Delta Air Lines flights tracked on this route; 7 cancelled, 2 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.