OnTimeRoutes
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United Airlines MSY to IAH on-time performance

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

On-time arrivals
83%
arrived < 15 min late
Cancelled
0.4%
10 flights
Avg arrival delay
13 min
73 min when late
Rank on route
#1 of 4
route average 83% on time

Key facts

  • United Airlines flights on MSY to IAH arrived on time 83% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 83% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (38%).

On-time trend by month

60%80%100%July 2025: 74.1% on time, 1.4% cancelledJul ’25August 2025: 82.8% on time, 0.4% cancelledAug ’25September 2025: 91.1% on time, 0.8% cancelledSep ’25October 2025: 82.4% on time, 0.4% cancelledOct ’25November 2025: 80.9% on time, 0.0% cancelledNov ’25December 2025: 86.0% on time, 0.0% cancelledDec ’25January 2026: 91.9% on time, 0.4% cancelledJan ’26February 2026: 88.9% on time, 0.0% cancelledFeb ’26March 2026: 81.1% on time, 1.6% cancelledMar ’26April 2026: 83.4% on time, 0.0% cancelledApr ’26May 2026: 72.1% on time, 0.0% cancelledMay ’26June 2026: 73.2% on time, 0.5% cancelledJun ’26July 2026: 80.0% 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

  • Air traffic control & airport congestion38%
  • Late-arriving aircraft38%
  • Airline (crew, maintenance, cleaning, fueling)21%
  • Extreme weather4%
  • Security0%

Other airlines on MSY to IAH

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

2,777 United Airlines flights tracked on this route; 10 cancelled, 1 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.