OnTimeRoutes
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Spirit Airlines LAS to IAH on-time performance

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

On-time arrivals
78%
arrived < 15 min late
Cancelled
2.8%
13 flights
Avg arrival delay
23 min
101 min when late
Rank on route
#3 of 3
route average 84% on time

Key facts

  • Spirit Airlines flights on LAS to IAH arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 2.8% were cancelled, and 9% arrived an hour or more late.
  • That ranks #3 of 3 airlines on this route, which averaged 84% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (53%).

On-time trend by month

0%50%100%July 2025: 71.4% on time, 0.0% cancelledJul ’25August 2025: 68.3% on time, 1.6% cancelledAug ’25September 2025: 78.0% on time, 0.0% cancelledSep ’25October 2025: 91.9% on time, 0.0% cancelledOct ’25November 2025: 82.0% on time, 0.0% cancelledNov ’25December 2025: 87.5% on time, 0.0% cancelledDec ’25January 2026: 89.7% on time, 6.5% cancelledJan ’26February 2026: 79.2% on time, 5.4% cancelledFeb ’26March 2026: 55.8% on time, 6.5% cancelledMar ’26April 2026: 73.7% 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

  • Airline (crew, maintenance, cleaning, fueling)53%
  • Air traffic control & airport congestion25%
  • Late-arriving aircraft20%
  • Extreme weather2%
  • Security0%

Other airlines on LAS to IAH

470 Spirit Airlines flights tracked on this route; 13 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.