OnTimeRoutes
C

United Airlines SLC to ORD on-time performance

United Airlines nonstop flights from Salt Lake City to Chicago · Aug 2025 – Jul 2026

On-time arrivals
75%
arrived < 15 min late
Cancelled
1.6%
17 flights
Avg arrival delay
23 min
89 min when late
Rank on route
#3 of 5
route average 76% on time

Key facts

  • United Airlines flights on SLC to ORD arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 1.6% were cancelled, and 10% arrived an hour or more late.
  • That ranks #3 of 5 airlines on this route, which averaged 76% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (54%).

On-time trend by month

50%75%100%July 2025: 67.4% on time, 0.0% cancelledJul ’25August 2025: 81.2% on time, 3.3% cancelledAug ’25September 2025: 84.5% on time, 1.2% cancelledSep ’25October 2025: 77.9% on time, 1.1% cancelledOct ’25November 2025: 76.3% on time, 0.0% cancelledNov ’25December 2025: 67.6% on time, 0.0% cancelledDec ’25January 2026: 63.0% on time, 1.1% cancelledJan ’26February 2026: 82.7% on time, 0.0% cancelledFeb ’26March 2026: 66.7% on time, 3.3% cancelledMar ’26April 2026: 75.9% on time, 0.0% cancelledApr ’26May 2026: 84.6% on time, 0.0% cancelledMay ’26June 2026: 79.3% on time, 2.2% cancelledJun ’26July 2026: 67.8% on time, 5.4% 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 congestion54%
  • Late-arriving aircraft22%
  • Airline (crew, maintenance, cleaning, fueling)16%
  • Extreme weather8%
  • Security0%

Other airlines on SLC to ORD

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

1,070 United Airlines flights tracked on this route; 17 cancelled, 7 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.