Route Reliability
Houston → Detroit
IAH–DTW · 1,075 miles · George Bush Intercontinental Airport to Detroit Metropolitan Wayne County Airport
- 81%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.0%
- Cancelled
- 2,827
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines83%1,321 flights
- 2.United Airlines81%969 flights
- 3.Spirit Airlines78%446 flights
Not enough history to rank: Frontier Airlines (91 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning flights do better here.
IAH–DTW flights departing between 3–6 AM arrived on time 89% of the time, versus 71% between 6–9 PM.
Wednesday comes out ahead.
A small edge: 84% on time on Wednesdays against 77% on Sundays.
Delta Air Lines has a slight edge here.
Delta Air Lines arrived on time 83% of the time on this route; Spirit Airlines managed 78%.
Slipping a little lately.
IAH–DTW flights arrived on time 78% of the time over the last three months in the data, compared with 82% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon81%(426 flights)
- Tue84%(392 flights)
- Wed84%(395 flights)
- Thu80%(419 flights)
- Fri81%(430 flights)
- Sat78%(320 flights)
- Sun77%(406 flights)
- 3–6 AM89%(427 flights)
- 6–9 AM82%(215 flights)
- 9 AM–12 PM85%(343 flights)
- 12–3 PM84%(649 flights)
- 3–6 PM80%(437 flights)
- 6–9 PM71%(717 flights)
Jun 74% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 74% | 231 |
| July 2025 | 78% | 249 |
| August 2025 | 79% | 258 |
| September 2025 | 90% | 241 |
| October 2025 | 88% | 251 |
| November 2025 | 82% | 233 |
| December 2025 | 81% | 220 |
| January 2026 | 81% | 191 |
| February 2026 | 84% | 198 |
| March 2026 | 70% | 242 |
| April 2026 | 81% | 237 |
| May 2026 | 82% | 237 |
Keep nerding
Based on 2,827 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.