OnTimeRoutes
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United Airlines AUS to ORD on-time performance

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

On-time arrivals
75%
arrived < 15 min late
Cancelled
1.3%
20 flights
Avg arrival delay
21 min
81 min when late
Rank on route
#1 of 6
route average 73% on time

Key facts

  • United Airlines flights on AUS to ORD arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 1.3% were cancelled, and 9% 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 air traffic control & airport congestion (55%).

On-time trend by month

50%75%100%July 2025: 71.0% on time, 0.0% cancelledJul ’25August 2025: 85.1% on time, 0.0% cancelledAug ’25September 2025: 85.1% on time, 0.0% cancelledSep ’25October 2025: 76.3% on time, 0.0% cancelledOct ’25November 2025: 64.2% on time, 2.4% cancelledNov ’25December 2025: 71.6% on time, 0.0% cancelledDec ’25January 2026: 67.6% on time, 4.7% cancelledJan ’26February 2026: 83.5% on time, 0.0% cancelledFeb ’26March 2026: 71.1% on time, 1.6% cancelledMar ’26April 2026: 67.7% on time, 2.3% cancelledApr ’26May 2026: 79.7% on time, 0.0% cancelledMay ’26June 2026: 75.4% on time, 1.4% cancelledJun ’26July 2026: 76.1% on time, 3.4% 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 congestion55%
  • Late-arriving aircraft26%
  • Airline (crew, maintenance, cleaning, fueling)19%
  • Extreme weather1%
  • Security0%

Other airlines on AUS to ORD

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

1,510 United Airlines flights tracked on this route; 20 cancelled, 12 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.