OnTimeRoutes
D

United Airlines ROC to ORD on-time performance

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

On-time arrivals
68%
arrived < 15 min late
Cancelled
1.5%
9 flights
Avg arrival delay
27 min
79 min when late
Rank on route
#3 of 4
route average 76% on time

Key facts

  • United Airlines flights on ROC to ORD arrived on time 68% of the time in Aug 2025 – Jul 2026.
  • 1.5% were cancelled, and 12% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 76% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (45%).

On-time trend by month

40%70%100%July 2025: 60.0% on time, 1.6% cancelledJul ’25August 2025: 69.5% on time, 4.8% cancelledAug ’25September 2025: 71.2% on time, 0.0% cancelledSep ’25October 2025: 63.8% on time, 0.0% cancelledOct ’25November 2025: 61.0% on time, 1.7% cancelledNov ’25December 2025: 59.1% on time, 2.2% cancelledDec ’25January 2026: 55.9% on time, 2.9% cancelledJan ’26February 2026: 78.6% on time, 0.0% cancelledFeb ’26March 2026: 77.4% on time, 0.0% cancelledMar ’26April 2026: 91.2% on time, 2.9% cancelledApr ’26May 2026: 66.1% on time, 0.0% cancelledMay ’26June 2026: 70.9% on time, 0.0% cancelledJun ’26July 2026: 60.7% 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 congestion45%
  • Late-arriving aircraft27%
  • Airline (crew, maintenance, cleaning, fueling)24%
  • Extreme weather3%
  • Security0%

Other airlines on ROC to ORD

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

588 United Airlines flights tracked on this route; 9 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.