OnTimeRoutes
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Southwest Airlines TUS to LAS on-time performance

Southwest Airlines nonstop flights from Tucson to Las Vegas · Aug 2025 – Jul 2026

On-time arrivals
85%
arrived < 15 min late
Cancelled
0.2%
2 flights
Avg arrival delay
10 min
62 min when late
Rank on route
#1 of 2
route average 85% on time

Key facts

  • Southwest Airlines flights on TUS to LAS arrived on time 85% of the time in Aug 2025 – Jul 2026.
  • 0.2% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 85% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (57%).

On-time trend by month

60%80%100%July 2025: 84.3% on time, 0.0% cancelledJul ’25August 2025: 86.9% on time, 0.0% cancelledAug ’25September 2025: 78.6% on time, 1.0% cancelledSep ’25October 2025: 87.7% on time, 0.0% cancelledOct ’25November 2025: 88.6% on time, 0.0% cancelledNov ’25December 2025: 90.7% on time, 0.0% cancelledDec ’25January 2026: 92.2% on time, 0.0% cancelledJan ’26February 2026: 88.9% on time, 0.0% cancelledFeb ’26March 2026: 79.3% on time, 0.9% cancelledMar ’26April 2026: 87.6% on time, 0.0% cancelledApr ’26May 2026: 79.0% on time, 0.0% cancelledMay ’26June 2026: 78.2% on time, 0.0% cancelledJun ’26July 2026: 80.9% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft57%
  • Air traffic control & airport congestion24%
  • Airline (crew, maintenance, cleaning, fueling)17%
  • Extreme weather2%
  • Security0%

Other airlines on TUS to LAS

1,248 Southwest Airlines flights tracked on this route; 2 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.