OnTimeRoutes
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Spirit Airlines IAH to LAS on-time performance

Spirit Airlines nonstop flights from Houston to Las Vegas · Aug 2025 – Jul 2026

On-time arrivals
82%
arrived < 15 min late
Cancelled
2.4%
11 flights
Avg arrival delay
14 min
75 min when late
Rank on route
#2 of 3
route average 82% on time

Key facts

  • Spirit Airlines flights on IAH to LAS arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 2.4% were cancelled, and 8% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (39%).

On-time trend by month

0%50%100%July 2025: 82.0% on time, 0.0% cancelledJul ’25August 2025: 92.2% on time, 1.5% cancelledAug ’25September 2025: 93.2% on time, 0.0% cancelledSep ’25October 2025: 78.7% on time, 0.0% cancelledOct ’25November 2025: 73.3% on time, 0.0% cancelledNov ’25December 2025: 80.4% on time, 0.0% cancelledDec ’25January 2026: 82.8% on time, 3.3% cancelledJan ’26February 2026: 80.8% on time, 5.5% cancelledFeb ’26March 2026: 75.0% on time, 4.3% cancelledMar ’26April 2026: 78.9% on time, 7.3% cancelledApr ’26May 2026: 0.0% on time, 50.0% cancelledMay ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft39%
  • Airline (crew, maintenance, cleaning, fueling)34%
  • Air traffic control & airport congestion24%
  • Extreme weather3%
  • Security0%

Other airlines on IAH to LAS

466 Spirit Airlines flights tracked on this route; 11 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.