OnTimeRoutes
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SkyWest Airlines TUS to DEN on-time performance

SkyWest Airlines nonstop flights from Tucson to Denver · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.

On-time arrivals
86%
arrived < 15 min late
Cancelled
0.5%
3 flights
Avg arrival delay
14 min
94 min when late
Rank on route
#1 of 4
route average 83% on time

Key facts

  • SkyWest Airlines flights on TUS to DEN arrived on time 86% of the time in Aug 2025 – Jul 2026.
  • 0.5% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 83% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (59%).

On-time trend by month

50%75%100%July 2025: 90.0% on time, 3.2% cancelledJul ’25August 2025: 65.7% on time, 0.0% cancelledAug ’25September 2025: 83.3% on time, 0.0% cancelledSep ’25October 2025: 100.0% on time, 0.0% cancelledOct ’25November 2025: 96.6% on time, 3.3% cancelledNov ’25December 2025: 82.3% on time, 0.0% cancelledDec ’25January 2026: 95.1% on time, 0.0% cancelledJan ’26February 2026: 81.5% on time, 1.8% cancelledFeb ’26March 2026: 76.6% on time, 0.0% cancelledMar ’26April 2026: 92.2% on time, 0.0% cancelledApr ’26May 2026: 91.3% on time, 0.0% cancelledMay ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)59%
  • Air traffic control & airport congestion20%
  • Late-arriving aircraft13%
  • Extreme weather7%
  • Security0%

Other airlines on TUS to DEN

Full TUS to DEN comparison →
SkyWest Airlines on-time record across all routes →

590 SkyWest Airlines flights tracked on this route; 3 cancelled, 2 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.