OnTimeRoutes
C

Southwest Airlines ORD to DEN on-time performance

Southwest Airlines nonstop flights from Chicago to Denver · Aug 2025 – Jul 2026

On-time arrivals
74%
arrived < 15 min late
Cancelled
1.5%
6 flights
Avg arrival delay
18 min
66 min when late
Rank on route
#3 of 5
route average 75% on time

Key facts

  • Southwest Airlines flights on ORD to DEN arrived on time 74% of the time in Aug 2025 – Jul 2026.
  • 1.5% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 5 airlines on this route, which averaged 75% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (64%).

On-time trend by month

20%60%100%July 2025: 67.0% on time, 2.2% cancelledJul ’25August 2025: 74.4% on time, 1.1% cancelledAug ’25September 2025: 88.4% on time, 0.0% cancelledSep ’25October 2025: 78.3% on time, 0.0% cancelledOct ’25November 2025: 71.4% on time, 12.5% cancelledNov ’25December 2025: 45.5% on time, 0.0% cancelledDec ’25January 2026: 100.0% on time, 0.0% cancelledJan ’26February 2026: 100.0% on time, 0.0% cancelledFeb ’26March 2026: 36.0% on time, 10.7% cancelledMar ’26April 2026: 58.6% on time, 3.3% cancelledApr ’26May 2026: 71.0% on time, 0.0% cancelledMay ’26June 2026: 66.7% on time, 0.0% cancelledJun ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft64%
  • Air traffic control & airport congestion19%
  • Airline (crew, maintenance, cleaning, fueling)17%
  • Extreme weather0%
  • Security0%

Other airlines on ORD to DEN

Full ORD to DEN comparison →
Southwest Airlines on-time record across all routes →

390 Southwest Airlines flights tracked on this route; 6 cancelled, 1 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.