OnTimeRoutes
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United Airlines IAH to DTW on-time performance

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

On-time arrivals
70%
arrived < 15 min late
Cancelled
0.7%
2 flights
Avg arrival delay
19 min
61 min when late
Rank on route
#4 of 5
route average 79% on time

Key facts

  • United Airlines flights on IAH to DTW arrived on time 70% of the time in Aug 2025 – Jul 2026.
  • 0.7% were cancelled, and 11% arrived an hour or more late.
  • That ranks #4 of 5 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (48%).

On-time trend by month

30%65%100%July 2025: 62.1% on time, 6.5% cancelledJul ’25August 2025: 66.7% on time, 3.2% cancelledAug ’25September 2025: 83.3% on time, 0.0% cancelledSep ’25October 2025: 42.9% on time, 0.0% cancelledOct ’25November 2025: 76.7% on time, 0.0% cancelledNov ’25December 2025: 75.0% on time, 0.0% cancelledDec ’25January 2026: 80.0% on time, 0.0% cancelledJan ’26February 2026: 77.8% on time, 0.0% cancelledFeb ’26March 2026: 58.6% on time, 3.3% cancelledMar ’26April 2026: 70.0% on time, 0.0% cancelledApr ’26May 2026: 74.2% on time, 0.0% cancelledMay ’26June 2026: 70.0% on time, 0.0% cancelledJun ’26July 2026: 60.7% 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)48%
  • Late-arriving aircraft40%
  • Air traffic control & airport congestion11%
  • Extreme weather1%
  • Security0%

Other airlines on IAH to DTW

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

280 United Airlines flights tracked on this route; 2 cancelled, 0 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.