OnTimeRoutes
C

Southwest Airlines LAS to TUS on-time performance

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

On-time arrivals
75%
arrived < 15 min late
Cancelled
0.4%
5 flights
Avg arrival delay
13 min
49 min when late
Rank on route
#2 of 2
route average 76% on time

Key facts

  • Southwest Airlines flights on LAS to TUS arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 76% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (65%).

On-time trend by month

50%75%100%July 2025: 71.9% on time, 0.0% cancelledJul ’25August 2025: 78.8% on time, 0.0% cancelledAug ’25September 2025: 69.4% on time, 1.0% cancelledSep ’25October 2025: 76.1% on time, 0.9% cancelledOct ’25November 2025: 76.1% on time, 0.9% cancelledNov ’25December 2025: 76.3% on time, 0.0% cancelledDec ’25January 2026: 85.1% on time, 1.0% cancelledJan ’26February 2026: 80.8% on time, 0.0% cancelledFeb ’26March 2026: 81.4% on time, 0.0% cancelledMar ’26April 2026: 77.1% on time, 0.0% cancelledApr ’26May 2026: 73.3% on time, 0.0% cancelledMay ’26June 2026: 62.8% on time, 0.0% cancelledJun ’26July 2026: 63.6% on time, 1.1% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft65%
  • Airline (crew, maintenance, cleaning, fueling)31%
  • Air traffic control & airport congestion4%
  • Extreme weather0%
  • Security0%

Other airlines on LAS to TUS

1,248 Southwest Airlines flights tracked on this route; 5 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.