OnTimeRoutes
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Delta Air Lines LGA to IAH on-time performance

Delta Air Lines nonstop flights from New York to Houston · Aug 2025 – Jul 2026

On-time arrivals
75%
arrived < 15 min late
Cancelled
4.3%
58 flights
Avg arrival delay
22 min
86 min when late
Rank on route
#4 of 4
route average 77% on time

Key facts

  • Delta Air Lines flights on LGA to IAH arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 4.3% were cancelled, and 12% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (53%).

On-time trend by month

40%70%100%July 2025: 67.3% on time, 2.6% cancelledJul ’25August 2025: 85.7% on time, 0.0% cancelledAug ’25September 2025: 78.6% on time, 0.0% cancelledSep ’25October 2025: 64.5% on time, 4.3% cancelledOct ’25November 2025: 68.6% on time, 0.9% cancelledNov ’25December 2025: 56.1% on time, 10.1% cancelledDec ’25January 2026: 81.6% on time, 5.5% cancelledJan ’26February 2026: 87.2% on time, 6.0% cancelledFeb ’26March 2026: 78.8% on time, 12.2% cancelledMar ’26April 2026: 80.0% on time, 1.8% cancelledApr ’26May 2026: 69.2% on time, 0.8% cancelledMay ’26June 2026: 77.5% on time, 0.9% cancelledJun ’26July 2026: 72.9% on time, 9.2% 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)53%
  • Air traffic control & airport congestion24%
  • Late-arriving aircraft21%
  • Extreme weather2%
  • Security0%

Other airlines on LGA to IAH

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

1,345 Delta Air Lines flights tracked on this route; 58 cancelled, 9 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.