OnTimeRoutes
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Southwest Airlines DEN to AUS on-time performance

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

On-time arrivals
75%
arrived < 15 min late
Cancelled
0.6%
15 flights
Avg arrival delay
15 min
54 min when late
Rank on route
#3 of 4
route average 77% on time

Key facts

  • Southwest Airlines flights on DEN to AUS arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 0.6% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (54%).

On-time trend by month

40%70%100%July 2025: 51.2% on time, 0.9% cancelledJul ’25August 2025: 68.7% on time, 0.0% cancelledAug ’25September 2025: 72.1% on time, 0.0% cancelledSep ’25October 2025: 76.3% on time, 0.0% cancelledOct ’25November 2025: 82.0% on time, 0.6% cancelledNov ’25December 2025: 77.7% on time, 0.0% cancelledDec ’25January 2026: 89.8% on time, 1.8% cancelledJan ’26February 2026: 82.9% on time, 0.0% cancelledFeb ’26March 2026: 71.8% on time, 0.9% cancelledMar ’26April 2026: 81.8% on time, 0.0% cancelledApr ’26May 2026: 71.1% on time, 1.4% cancelledMay ’26June 2026: 62.0% on time, 1.0% cancelledJun ’26July 2026: 68.4% on time, 1.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft54%
  • Airline (crew, maintenance, cleaning, fueling)32%
  • Air traffic control & airport congestion13%
  • Extreme weather1%
  • Security0%

Other airlines on DEN to AUS

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

2,362 Southwest Airlines flights tracked on this route; 15 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.