OnTimeRoutes
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United Airlines ORD to AUS on-time performance

United Airlines nonstop flights from Chicago to Austin · Aug 2025 – Jul 2026

On-time arrivals
79%
arrived < 15 min late
Cancelled
1.1%
17 flights
Avg arrival delay
15 min
67 min when late
Rank on route
#1 of 6
route average 73% on time

Key facts

  • United Airlines flights on ORD to AUS arrived on time 79% of the time in Aug 2025 – Jul 2026.
  • 1.1% were cancelled, and 7% arrived an hour or more late.
  • That ranks #1 of 6 airlines on this route, which averaged 73% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (43%).

On-time trend by month

50%75%100%July 2025: 63.0% on time, 0.9% cancelledJul ’25August 2025: 85.0% on time, 0.9% cancelledAug ’25September 2025: 84.3% on time, 0.0% cancelledSep ’25October 2025: 80.0% on time, 0.0% cancelledOct ’25November 2025: 79.7% on time, 2.4% cancelledNov ’25December 2025: 75.2% on time, 0.0% cancelledDec ’25January 2026: 76.2% on time, 5.6% cancelledJan ’26February 2026: 89.3% on time, 0.0% cancelledFeb ’26March 2026: 73.6% on time, 0.8% cancelledMar ’26April 2026: 74.6% on time, 2.3% cancelledApr ’26May 2026: 78.4% on time, 0.0% cancelledMay ’26June 2026: 75.9% on time, 0.7% cancelledJun ’26July 2026: 79.5% on time, 1.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft43%
  • Airline (crew, maintenance, cleaning, fueling)24%
  • Air traffic control & airport congestion22%
  • Extreme weather11%
  • Security0%

Other airlines on ORD to AUS

Full ORD to AUS comparison →
United Airlines on-time record across all routes →

1,511 United Airlines flights tracked on this route; 17 cancelled, 3 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.