OnTimeRoutes
C

United Airlines IAH to LGA on-time performance

United Airlines nonstop flights from Houston to New York · Aug 2025 – Jul 2026

On-time arrivals
71%
arrived < 15 min late
Cancelled
1.6%
37 flights
Avg arrival delay
23 min
75 min when late
Rank on route
#3 of 4
route average 73% on time

Key facts

  • United Airlines flights on IAH to LGA arrived on time 71% of the time in Aug 2025 – Jul 2026.
  • 1.6% were cancelled, and 12% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 73% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (56%).

On-time trend by month

30%65%100%July 2025: 62.7% on time, 3.0% cancelledJul ’25August 2025: 68.1% on time, 1.3% cancelledAug ’25September 2025: 84.6% on time, 0.0% cancelledSep ’25October 2025: 65.7% on time, 0.9% cancelledOct ’25November 2025: 67.0% on time, 0.9% cancelledNov ’25December 2025: 68.6% on time, 1.4% cancelledDec ’25January 2026: 90.9% on time, 4.0% cancelledJan ’26February 2026: 77.3% on time, 5.8% cancelledFeb ’26March 2026: 47.9% on time, 3.9% cancelledMar ’26April 2026: 79.8% on time, 0.4% cancelledApr ’26May 2026: 77.6% on time, 1.3% cancelledMay ’26June 2026: 67.1% on time, 0.9% cancelledJun ’26July 2026: 58.9% on time, 2.2% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion56%
  • Late-arriving aircraft25%
  • Airline (crew, maintenance, cleaning, fueling)16%
  • Extreme weather2%
  • Security0%

Other airlines on IAH to LGA

Full IAH to LGA comparison →
United Airlines on-time record across all routes →

2,381 United Airlines flights tracked on this route; 37 cancelled, 19 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.