Spirit Airlines DTW to IAH on-time performance
Spirit Airlines nonstop flights from Detroit to Houston · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
2.0%
7 flights
Avg arrival delay
19 min
81 min when late
Rank on route
#3 of 5
route average 79% on time
Key facts
- Spirit Airlines flights on DTW to IAH arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 2% were cancelled, and 8% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (42%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion42%
- Airline (crew, maintenance, cleaning, fueling)32%
- Late-arriving aircraft25%
- Extreme weather1%
- Security0%
Other airlines on DTW to IAH
- Delta Air Lines79% on time · 13 min avg delay
- United Airlines88% on time · 7 min avg delay
- Frontier Airlines66% on time · 25 min avg delay
- SkyWest Airlines67% on time · 6 min avg delay
Full DTW to IAH comparison →
Spirit Airlines on-time record across all routes →
351 Spirit Airlines flights tracked on this route; 7 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.