Delta Air Lines DTW to IAH on-time performance
Delta Air Lines nonstop flights from Detroit to Houston · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.8%
11 flights
Avg arrival delay
13 min
56 min when late
Rank on route
#2 of 5
route average 79% on time
Key facts
- Delta Air Lines flights on DTW to IAH arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (50%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)50%
- Air traffic control & airport congestion31%
- Late-arriving aircraft18%
- Extreme weather2%
- Security0%
Other airlines on DTW to IAH
- Spirit Airlines78% on time · 19 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 →
Delta Air Lines on-time record across all routes →
1,322 Delta Air Lines flights tracked on this route; 11 cancelled, 3 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.